I’d be grateful for your opinion concerning the silver marks in the attached photo. They are from the case back of an early 1900s wristwatch.
In Tardy’s “Poincons d’Argent”, I found what appears to be the same mark as the one which appears on the upper right-hand side of the attached photo: a Dublin post-1906 import mark. However, I’m left uncertain since the small letter “n” in a shield, which I think must be the year mark, does not appear to exist for Dublin,… or am I mistaken?
I’d greatly appreciate any insight the expert members of this Forum could offer…