The scope of 18 U.S.C. § 500 includes the theft, embezzlement, or wrongful possession and use of blank postal money orders as well as those machines, tools or instruments used for completing such money orders. As a corollary to the blank money order provisions, 18 U.S.C. § 500 specifically covers those machines and other instruments essential to the thief if he is to complete the blank money orders for subsequent negotiation.
[cited in USAM 9-64.200]