The Feds gave me a Firearms Curios and Relics List with my C&R. It lists all of the firearms you can get with your C&R. All L.C. Smiths, Parkers, Foxes are covered, plus some more modern, but deemed collectable firearms. If in any doubt, consult this list.
Those same "Feds" should also have given you a sheet explaining that any other firearm not specifically included in the panphlet but that can be prooved to be over 50 years old is also eligible. It's a standard attachment to the C & R pamphlet/
listing. The biggest majority of European firearms will not be on the listings, but that does NOT mean they are not C & R eligible. If you believe that you only can buy those firearms that are specifically listed, you are eliminating the major portion of firearms that have been made available to C & R licensees. All you have to do is prove the age of the gun, and the burden is on you to do that. It's not too difficult to accomplish in most cases.