Hi. I could use some help with this one. It's been in the family since (allegedly) the 1830s. The marks on the case outer shell are similar to the ones on the inner shell, except the latter are missing a city mark. The outer shell marks are worn, but to me seem to be a three tower castle (Edinburgh?), a crown, an 18, and a capital I. The crown, the 18, and the letter are clearly visible on the inner case. Cheers!
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