I have a 1928 and a 1950 Huther catalog. They made a lot of specialty saws and cutters and saw tools (gummers, set, vises) mostly for circular and band saws. There is nothing like that in either catalog, so I would go with some kind of display fixture. They have pictures in their catalog of all the kinds of finger and other joints and odd cuts their cutters make. It could have been a store display stand that had examples of the kind of work their blades would cut.