Thanks Don, and Mark, that's perhaps where I get all befuddled. I go with that Berks on a diet theme, and maybe the later Berks guns are more consistent with their up river counterparts than are the older Berks examples. In short, I like all of these guns. Also, occasionally one of these specimens with superior work still pops up, as some of our friends can recently attest.
Incidentally, as some of our colleagues have recently pointed out, with a fast horse, and with both the rider and horse being in good health, it's not much of a jaunt from Snyder County to Berks or Harrisburg. We've already established that some guys rode further than that to sustain an amorous affair. Came close to marrying a gal from Pottsville myself, but I had a BSA 650 Lightning and two lanes of clean mountain road cutting through the lower coal region to make my trips more convenient. Yes, I would have ridden a horse if that's all I had.
Here's a theory--the gunsmith with the most apprentices, hence the most influential regional teacher, was the one with the prettiest daughter. Leads to a serious possibility-- another Ph.D. thesis topic for a cultural anthropologist or American Studies student. Trace the marriages of known gunsmiths' offspring...the intermarriages between known gunsmithing families...then use that as a backdrop to interpret architectural similarities. I can name quite a few blended families myself, which would include the names of a few grand masters. Only logical. JWH