I was out of town for a few days, so I'm just now getting back to this thread.
Just to briefly elaborate on my reasons for thinking this is more likely 20th C than 18th C - mostly it's the design and condition of rim, the fact that it's a plain band on the interior, and the style of rim engraving it's accenting. Makes me wonder if there's some American stylistic influence there, but the fact that the rim is ground suggests Bohemian. Older Bohemian engraving in this vein is often gilt.
Anyway, that's my thinking...could be wrong, of course! Thought that since I threw in that guess at a date, the least I could do was give my reasoning behind it as well.