Just a follow up to this thread. I made contact with Terry and we set a time for me to go out to Palmyra and have him take a look at the gun. I can't say enough good about Terry. What a nice and extremely knowledgable gun enthusiast. He did not charge me a dime for his time, though I offered to pay. He just enjoys talking about guns...unlike the rest of us.
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If I need him to write up something more official, he charges a negligible $20 fee. If my brother-in-law doesn't believe my findings, I may have him do that.
Fly