This thread caused me to go out to the garage, sore back and all, and dig out my gardening 84mm Tinker. It was purchased in the early '90s, I think '91. There is no sewing eye. There is a can key slot on the phillips.
I may be wrong but I've always figured that the huge manufacturers made large quantities of blades, tools, liners, etc. and then used them until they ran out. Any new ideas would then be incorporated in the next batch. So if Victorinox made up 10,000 awls in February of 1989 and then decided in April '89 that sewing eyes would be a good idea, they would wait until the 10,000 awls were gone and then make up some of the improved models. So different parts on the same finished knife may be manufactured several years apart.
What about the corkscrews? When did they stop having the little groove or casting mark on the side?
I may be wrong but I've always figured that the huge manufacturers made large quantities of blades, tools, liners, etc. and then used them until they ran out. Any new ideas would then be incorporated in the next batch. So if Victorinox made up 10,000 awls in February of 1989 and then decided in April '89 that sewing eyes would be a good idea, they would wait until the 10,000 awls were gone and then make up some of the improved models. So different parts on the same finished knife may be manufactured several years apart.
What about the corkscrews? When did they stop having the little groove or casting mark on the side?