Rusty,, the sub gun on the bottom is a PPSH ,, they were made by the Russians made millions during WWII and a few survived the war and were brought back as war trophies.. several years ago some of these were imported as parts kits to be made into display guns..
Fully functional full auto sub guns are legal to own provided they are properly registered with the BATF and you meet the requirements..
and pay the $200.00 tax ..