My guess is that the owner broke the original hard rubber stocks and made a cast of those broken and beat up stocks, then molded a few aluminum copies, cracks, dents, and all. Casting is crudely done and there is no doubt that they are, as Ed stated. By 1920, the company made some walnut extension stocks for their RPs and 22/32 HFTs that were a similar shape as the wood extension stocks, but not made in hard rubber.

Odd thing is that I do not think any hard rubber extension stocks of that shape were used on Single Shots, Double Action 38s, or I frames except for those with "ears" on the rear top of the stocks??? I suppose those extensions could have been filed off for the casting???

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Gary
SWCA 2515