Finally had the chance to photograph my latest trapdoor, the 1866 I mentioned in the other thread. As always, tremendous thanks to Mr. Hosmer for his advice.
Unfortunately the cleaning rod is a problem - it doesn't screw in.
The barrel liner can be seen clearly.
Still some case color on the hammer and sideplate, and the blackened finish on the door is still nice.
Flat shows two cartouches, overlapping SWP and ESA.
The sight appears to have the numbering on the 'correct' side, facing the shooter.
Looks like it is marked "5," "3," and an ampersand "&" sign near the bottom. Had a bit of a hard time getting a good photo with my phone.
Appears to be the "L" firing proof, and maybe a sub-inspector "O" mark. There's no trace of any fancy "N" left, to my eye.
Decent bore, some pitting.