John – Thanks for sharing photographs of your two sets and knowledge of other two sets. The set I have was Grumley’s. So perhaps my set is one you counted as one of the other two sets you know of. Let me know as we don’t want to double count these peculiar limbs.
bowoc – Good to know that Natske also has two sets.
ckruse – Great identification, your “mustard-colored” description is precise. I’ll use it to replace my inadequate “pea green” explanation. Present status of “Fred Bear’s Most Collectible Bows 1933-1966”… a draft in revision. Last year, I increased my Grumleys from roughly 30 to 100. The number of separate identified categories increased from 6 to several additional sub-categories that were previously just considered to be variations. It’s fascinating to have the opportunity to study each of these Grumley bows and discover previously unrecorded data. I had nearly every bow in the 6 initial separate categories, but am still missing a few in the sub-categories. My intentions are to have photographs of all the bows in all categories and sub-categories. I am still researching some of these sub-categories. Right now I don’t know if some missing bows in the sub-categories even exist in any Grumley collection. As for the newer bows, 1949-1966, I am pretty well set with everything needed to show every bow in every length and every riser variation and wood type of every year. Have also expanded some of the 1949-1966 era to include other bows. Past books have taught me, it’s hard to know where to stop… Also, have a couple other books to finish up before spending all my time working on the bows. Hopefully I will live long enough to complete all of these projects.
Chuck – Serial number is 2-2682. Not sure if anyone has any idea as to the limb serial numbers produced by year and month, but would guess that 2682 was produced within months after production began. When I acquired these “mustard” limbs they were presented as “experimental”, which is probably more accurate than “proto-type” a term is usually reserved for the original or first working model of an item. Not sure if they were really experimental or even a special order, but if I were guessing (which I try never to do), they might be categorized as simply a project to turn some left over, low demand, “mustard” glass into some revenue. There are probably dozens of other explanations for their existence.