Intresting item for sure, So it's about the size of a saucer at 5" Round, 2" Deep. Would sound a bit big for Jewerly. Looks really official or Tourist like, Items with names of places are prime in the tourist market. Or it could be really official, like something military, being black and a sports a flag would give that impression to me. Not sure I can see a german lady using it on their dresser like a powder box. When you said it was Black enamel would that be painted enamel over metal?, which is what it appears in the pics, Kinda a iron texture looking. Sorry I can only guess here, just had me looking hard at the item and had to add a couple more cents