Frank Mihalyi was an executive at Benjamin and held several Benjamin airgun patents. Up on the bay in the US are a number of mint condition pistols and rifles from the late 1930s. Perhaps one of the more interesting Benjamin collections to ever come up for auction.
Some guys from outside the US are having problems accessing these auctions, they should show up if you search on Frank Mihalyi after having clicked the worldwide search option. However, just in case, I have grabbed some of the auction pictures and posted them to a flickr album.
https://flic.kr/s/aHskP8bCTQ
So you guys can see what gets many an American airgun collector's heart a pumping.