That is my assumption, but since actual frame measurements or details on lug markings were not provided. We are left to speculate based on what we know.
There has been past discussion based on earlier records where the outside frame dimension is recorded in the stock books leading one to deduce that this was “shop speak” for identifying frames. Barrels are the only component marked with “frame sizes”. So the workers way of identifying and referring to the actual frame was by the outside measurement over the breech balls before shoe filing.
In those discussions I recall Chuck stating that he does not add information on frame sizes to letters since it is not always clearly stated, as with the later records. And with the outside measurements being thrown into the mix, it makes for confusion. Vs. Previous research chairs, in this case Ron Kirby, chose to include any and all information put down as it was written.
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B. Dudley
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