The Dungeon Hobby Shop Museum, located in Lake Geneva, Wisconsin, is offering to license a selection of "Classic" TSR Logos via a claim of state trademark of "TSR".
Note: The Federal trademark for TSR
is WAS owned by TSR Games (edit - the TM was CANCELED last year - wow, this is a magilla) publishers of the Top Secret New World Order RPG. TSR Games registered its federal trademark in 2011. The trademark was formerly owned by WotC, who were determined to have abandoned the trademark in 2004. At this point, TSR Games would be relying upon Common Law, which is shaky ground in trademark law.
Additional note: The iconic images of the various "classic" TSR logos would likely still fall under copyright law. The images created from 1978 onward would then still be owned by WotC. Ownership of images prior to 1977 would need the consultation of an IP lawyer, as the possibility is some may be in the public domain.
Observation. The Dungeon Hobby Shop has filed for at least three federal trademarks regarding the various TSR Logos: