Taken from the ad. Courtesy of Remer/Stone:
"This is a very rare vintage Buck 110 Folding Hunter and Buck 112 Ranger demonstrator or salesman sample. This is one of the first samples built at Buck. This set was built by Leroy Remer for Vern Taylor one of Buck Knives first sales reps. These knives pre date the knives with clear Plexiglas sides. These were carried by Buck sales reps to show customers the inner workings of the Buck 110. The problem with this design was that the reps were cutting themselves. So Buck started putting the clear Plexiglas on one side to solve the problem. This is one of the rarest sets that exist and is very historic since Vern Taylor the founder of the Buck Knife Collectors Club used these on his sales trips. The 110 and 112 come with their original box and sheath. The knife, sheath, and, box do show wear from being carried and demonstrated by a Buck sales rep."