This is an 8x10 framed collectible display of "The Legendary Nikons," at least up to the F4. The display consists of seven 1" wide removable... I'm gonna say cufflinks?... each a bas-relief styled after famous Nikons: The 1948 Nikon I, the 1950 Nikon M, the 1951 Nikon S, the 1954 Nikon S2, the 1957 Nikon SP, the 1958 Nikon S3, the 1959 F, the 1971 F2 Photomic, the 1980 F3, and the 1988 F4 (although its label here is a duplicate of the F3's caption). A cool framed collectible, especially if you like pretending that the F4 is secretly an F3.

Just going to restate here so it's obvious: there's a mistake in the labeling of these cameras, and the F4's nameplate says "1980 Nikon F3", which is incorrect. The pin is definitely an F4, though.