Edwin Kinsley and Michael Guerra take these appeals from the denial by the district court of their motions under Rule 35, Fed.R.Crim.P., to correct their sentences.

Appellants (and one James Marihart) were convicted on all counts of a four-count indictment charging them, as previously convicted felons, with the unlawful possession of firearms in violation of 18 U.S.C. App. § 1202(a)(1).1 Each count involved a separate firearm. The proof at trial showed that appellants were in possession of the four firearms at a single time and place. The district court imposed the maximum two-year term on each count, and provided that the terms of three of the four counts would run consecutively. Thus, for their single act of simultaneously possessing four firearms, appellants were found guilty of four offenses and sentenced to a term of imprisonment of six years. We affirmed the judgment of conviction. United States v. Marihart, 492 F.2d 897 (8th Cir.), cert. denied, 419 U.S. 827, 95 S. Ct. 46, 42 L. Ed. 2d 51 (1974).2

Appellants then filed separate motions under Rule 35, Fed.R.Crim.P., to correct their sentences. They contended that the singular act of possessing the four firearms constituted only a single violation of § 1202(a), and that a term of imprisonment in excess of two years was thus illegal. The district court characterized the question as "an extremely close one," but proceeded to deny the motions for Rule 35 relief. The court found that the congressional purpose was one of minimizing the danger to society created by the possession of firearms by certain classes of people, and that Congress intended that this purpose be effectuated by making each firearm a unit of prosecution.

The appeals from the denial of relief by the district court were consolidated in this court for argument and opinion. We are faced with the single issue of whether the language of § 1202(a)(1), defining as a criminal offense the receipt, possession, or transportation in commerce by a previously convicted felon of "any firearm," allows the government to treat each of several firearms simultaneously possessed as a separate unit of prosecution.

A. THE ALLOWABLE UNIT OF PROSECUTION: GENERALLY.

The allowable unit of prosecution for a federal offense is set by Congress. When Congress fails to set the unit of prosecution with clarity, doubt as to congressional intent is resolved in favor of lenity for the accused. This settled rule of federal criminal law has received its most celebrated expression in Bell v. United States, 349 U.S 81, 75 S. Ct. 620, 99 L. Ed. 905 (1955). Bell presented the issue of whether the simultaneous interstate transportation of two women in violation of the Mann Act (making unlawful the interstate transportation of "any woman or girl" for immoral purposes) constituted two offenses or only one. Finding the legislative intent ambiguous, the Court stated:

About only one aspect of the problem can one be dogmatic. When Congress has the will it has no difficulty in expressing it when it has the will, that is, of defining what it desires to make the unit of prosecution and, more particularly, to make each stick in a faggot a single criminal unit. When Congress leaves to the Judiciary the task of imputing to Congress an undeclared will, the ambiguity should be resolved in favor of lenity.

349 U.S. at 83, 75 S. Ct. at 622.

The Bell rule of construction is founded on the dual considerations that criminal legislation must provide fair warning and that the legislature and not the courts should define criminal activity. United States v. Bass, 404 U.S. 336, 348, 92 S. Ct. 515, 30 L. Ed. 2d 488 (1971). In implementing these considerations, the courts have not hesitated to apply the rule of lenity to a wide variety of legislative contexts in which Congress has failed to clearly indicate the allowable unit of prosecution. See, e.g., Castle v. United States, 368 U.S. 13, 82 S. Ct. 123, 7 L. Ed. 2d 75 (1961) (unlawful transportation of five falsely made money orders; held, one offense); Ladner v. United States, 358 U.S. 169, 79 S. Ct. 209, 3 L. Ed. 2d 199 (1958) (discharge of gun wounding two federal officers; held, one assault); United States v. Universal C.I.T. Credit Corp., 344 U.S. 218, 73 S. Ct. 227, 97 L. Ed. 260 (1952) (wage and hour violations as to numerous employees over several weeks: held, single course of conduct constitutes only one offense); United States v. Deaton, 468 F.2d 541 (5th Cir. 1972), cert. denied, 410 U.S. 934, 93 S. Ct. 1386, 35 L. Ed. 2d 597 (1973) (simultaneous harboring of two prisoners; held, one offense); United States v. Melville, 309 F. Supp. 774 (S.D.N.Y.1970) (interference and obstruction of national defense by attempting to destroy three Army trucks; held, one offense).

Significantly, in many of the cases in which the courts have found a Bell -type ambiguity, the object of the offense has been prefaced by the word "any." Seemingly this is because "any" may be said to fully encompass (i.e., not necessarily exclude any part of) plural activity, and thus fails to unambiguously define the unit of prosecution in singular terms. See, e.g., Ladner v. United States, supra (statute provided: "Whoever shall forcibly * * * interfere with any person * * *"); Bell v. United States, supra (whoever knowingly transports "any woman or girl"); United States v. Deaton, supra ("Whoever * * * harbors * * * any prisoner * * *");3 Parmagini v. United States, 42 F.2d 721 (9th Cir. 1930, cert. denied, 283 U.S. 818, 51 S. Ct. 344, 75 L. Ed. 1434 (1931) ("any narcotic drug"; held, single concealment of two different drugs a single offense); Braden v. United States, 270 F. 441 (8th Cir. 1920) ("any of the aforesaid drugs"; held, possession of four different drugs a single offense);4 United States v. Melville, supra ("whoever * * * destroys * * * any national-defense material * * *); United States v. Martin, 302 F. Supp. 498 (W.D.Pa.1969), aff'd 428 F.2d 1140 (3rd Cir.), cert. denied, 400 U.S. 960, 91 S. Ct. 361, 27 L. Ed. 2d 269 (1970) ("any narcotic drug"; held, single transaction involving both heroin and cocaine constitutes a single offense). But see Ebeling v. Morgan, 237 U.S. 625, 35 S. Ct. 710, 59 L. Ed. 1151 (1915) ("whoever shall tear * * * any mail bag * * *"; held, tearing of each mail bag a separate offense). On the present authoritativeness of Parmagini v. United States, supra, and Braden v. United States, supra, compare United States v. Busch, 64 F.2d 27 (2nd Cir.), cert. denied, 290 U.S. 627, 54 S. Ct. 65, 78 L. Ed. 546 (1933), with United States v. Martin, supra.

B. THE ALLOWABLE UNIT OF PROSECUTION: 18 U.S.C. App. § 1202(a).

The question in the instant case thus narrows to whether the allowable unit of prosecution under § 1202(a) should be deemed ambiguous. In this inquiry, three general sources may be looked to: statutory language, legislative history, and the statutory scheme.

1. Statutory Language.

The statutory language of § 1202(a) is similar to that deemed ambiguous in Bell : as the statute in Bell defined the object of the offense as "any woman or girl," § 1202(a) defines the object of the offense as "any firearm." As noted in the earlier discussion, the word "any" has typically been found ambiguous in connection with the allowable unit of prosecution.

Recognizing this ambiguity, the Seventh Circuit has held that § 1202(a) makes the simultaneous possession of several weapons only one offense. United States v. Calhoun, 510 F.2d 861 (7th Cir. 1975). Similar results have been reached in cases concerning violations of other firearms statutes containing similar language. See McFarland v. Pickett, 469 F.2d 1277 (7th Cir. 1972) (construing 18 U.S.C. § 922(j));5 United States v. Carty, 447 F.2d 964 (5th Cir. 1971) (construing 18 U.S.C. § 922(i)).6

The government urges that the seemingly ambiguous language of § 1202(a) is rendered unambiguous by the preceding statutory section, 18 U.S.C. App. § 1201. In § 1201, entitled "Congressional findings and declaration," Congress makes the finding that a felon's receipt, possession, or transportation of "a firearm" provides a sufficient basis for the exercise of legislative power.7 On the strength of this section, the government would have us distinguish the judicial construction given analogous firearms provisions and the direct authority of the Seventh Circuit's holding in United States v. Calhoun, supra.

We cannot agree that this findings and declaration section renders unambiguous the subsequent definition of the offense in § 1202(a). It does not necessarily follow that, because possession of a single firearm is sufficient to constitute the evil legislated against, Congress thereby intended that felons in simultaneous possession of more than one firearm should be deemed to have committed multiple offenses. Moreover, we are reluctant to substitute the prefatory language of § 1201 for the language actually used in § 1202(a) to define the criminal offense. In short, while we find the language of § 1201 relevant, we think it insufficient to eliminate the ambiguity in § 1202(a).

We conclude that the language of § 1202(a), defining as the object of the offense "any firearm," must be deemed ambiguous on the issue of whether a single firearm is the unit of prosecution. As discussed above, this conclusion reflects the effect typically given the word "any," and is in accord with the cases construing § 1202(a) and closely analogous firearms provisions. See United States v. Calhoun, supra ; McFarland v. Pickett, supra ; United States v. Carty, supra.

2. Legislative History.

Ambiguous statutory language may, of course, be clarified through an examination of legislative history. To this end, the government in its brief cites portions of the Congressional Record for the proposition that Congress, in passing the legislation under scrutiny, made the possession of each firearm a separate offense.

We have examined the legislative history cited by the government. This history, consisting largely of an explanation of the statute by Senator Long and general comments by other Senators, lends no assistance in resolving the precise issue presented here. The allowable unit of prosecution under the statute is simply not addressed.

The legislative history indicates that Congress intended to legislate against a grave evil and that possession of a single firearm by a convicted felon was sufficient to constitute that evil. As noted earlier, however, the congressional intent to impose criminal penalties for possession of a single firearm does not necessarily imply that simultaneous possession of more than one firearm should invoke multiple penalties. Moreover, the Supreme Court, in dealing with a different ambiguity problem in § 1202, found general arguments as to the gravity of the evil unavailing to prevent application of the Bell rule of lenity. See United States v. Bass, supra.8 We conclude that the legislative history of § 1202(a) does not render the statute unambiguous.

3. Statutory Scheme.

The intent of Congress as to the allowable unit of prosecution may sometimes be discerned from the "statutory scheme"; i.e., the congressional intent as manifested in the overall legislative plan.

The statutory scheme has played an important role in the construction of at least one firearms provision: namely, 26 U.S.C. § 5861(d), making it unlawful

* * * to receive or possess a firearm which is not registered to him in the National Firearms Registration and Transfer Record.

The Fifth Circuit found the language of this provision just as ambiguous as that in Bell,9 but went on to find from an examination of the statutory scheme that Congress had intended a single firearm to be the unit of prosecution. United States v. Tarrant, 460 F.2d 701 (5th Cir. 1972). In so doing, it noted the legislative purpose to collect a transfer tax on each firearm transferred; since possession of several unregistered firearms frustrated the government's collection of the tax due on each weapon, the court reasoned that the possession of each individual firearm constituted a separate offense.

Of course, the taxing considerations present with respect to 26 U.S.C. § 5861(d) are not relevant to the construction of 18 U.S.C. App. § 1202(a). However, the government argues that the relatively short term of imprisonment authorized by § 1202 two years is indicative of a congressional scheme providing for successively more severe punishment as the number of weapons possessed increases. We regard this argument as having some force. Nonetheless, it is not self-evident that the two-year term was designed so as to permit greater sentence liability in multiple weapon cases, and the argument ultimately rests on an assumption as to congressional intent. The rule of lenity enunciated in Bell was meant to preclude the substitution of assumptions for an undeclared congressional intent.

C. CONCLUSION.

The unit of prosecution under 18 U.S.C. App. § 1202(a) must be determined largely on the basis of the precise statutory language, since neither the legislative history nor the statutory scheme provides meaningful guidance. However, we find the statutory language itself ambiguous.

The Supreme Court has recently reiterated that problems of this sort must be resolved in favor of the criminal defendant unless Congress has " plainly and unmistakably" defined the federal crime. United States v. Bass,supra, 404 U.S. at 348, 92 S. Ct. 515. We conclude that the ambiguity in § 1202(a) must be resolved in favor of the accused and that each of the appellants has committed only one offense.

We reverse the judgments of the district court and remand for resentencing in accordance with the principles set forth in this opinion.10