I came into possession of two 1851's recently.
One is a steel frame Pietta made in the mid 70's.
The other is the one I would like information about. It is brass frame with some of the best case coloring and cylinder engraving I have seen.
On the right side of the frame are 2 of the usual proof marks and what I am guessing is a year code of "xx8" On the underside near the barrel alignment pins and the part not covered by the trigger guard is I assume a serial number of "11944". On the rear on either side of the hammer channel, on the flats usually covered by the grip frame; right side is a "9" I say but could be a "6". On the left side "9" small space "86", but could be "98" then "6" depending on how you look at it.
The barrel on the right side between wedge slot and screw holding the loading lever are two prrof marks, same as on frame. above that on barrel flat is"-black powder only-" then mid barrel is "36 caliber". Bottom barrel flat, hidden by loading lever is " made in Italy". Left side of barrel between wedge slot and screw holding loading lever is "RAG".
Thanks for any information you may have.