Bill, I no longer own the gun and the letter. This gun had been redone by George Flaim many years ago and it was right as rain.

how is bore?

Dave, did your gun have the marking for frame size or the s/n on every part?
Mine only has the s/n on the under side of both bbl's, no other markings, although there is F,CB stamped on the stock face near the tang groove.

No as I recall it didn't

Please correct me if I'm wrong but further research leads me to believe the numbers on the underside of the BBL's next to the Birmingham Proof House hallmark are the BBL makers I'D not a S/N. I have also found out that the locks are " Stoks Patent" as there are no other markings on any of the gun components, Could it be that this gun was manufactured using surplus musket parts? which makes the date on the BBL rib of 1869 more logical

confused
 

here are some more pic's, the numbers next to the proof house hallmark are the only ones anywhere on any parts, note the letter "G" in the 2nd. pic.
I'll post pic's of the action when I get it back from DaveAttachment 52092

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some how my first pic didn't show-up so here it isAttachment 52101

Those look like Birmingham stamps - Rick Losey will know for sure.

First of those stamps I've seen on Parker barrels. They are definitely Laminated of some sort.

You Sir, have an extremely unusual Parker.






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Dean is correct

Provisional Birmingham proof- remarkably clear set of marks

look like a good restoration candidate