The Old Timer Safe-T-Grip series were ocassionally found in colors other than green. The 147 Pro Fisherman Fillet will be seen with black handles, and I think I saw one in blue. The 141OT Outfitter came with blue, black, and orange, and I have seen one in deep burgandy that might have been a prototype knife. Like the 5OT and the 5OTG, they were usually designated with a suffix letter for the color code. Black was ***OTB, Blue was ***OTBL, etc. Orange was ***OTO, and a series of four patterns of delrin fixed knives were made also in orange before the Safe-T-Grips, the 15OTO, 152OTO, 154OTO, 165OTO, and if I am not mistaken, I seem to remember a 158OTO. Sometimes these were given a different name on the shield, sometimes just called Limited Edition. I have none of them yet, so I cannot tell you if they received special tangstamps. I have a green delrin handled 154OTG which was a Copenhagen Tobacco issue with brass oval rope bordered "SCHRADE" shield, and "Skoal USA" tangstamp, "Limited Editon" blade etch. A blue delrin handled 165OT recently sold from the Sample room, so if it had ever hit production (to my knowledge, it did not) it would have been a 165OTBL. Black delrin handles were seen on several fixed blade old timer issues, but these were almost always a private issue or limited edition (Craftsman, Ducks Unlimited, etc.), so perhaps they were not considered a part of the production Old Timer fixed blade series either. The custom shop turned out various wood handled OT fixed blades, usually with Schrade+ U.S.A. LTD. tangstamps. I have seen what appears to be walnut, cocobolo, maple, and I have one with laminated wood handles.
Codger