Help with hallmark on a hand cased silver cup

[lyonspuppy]

I know this just might be a long shot but I have this antique hand chased silver cup with hallmarks that are very hard to see, would anyone be able to help me with these hallmarks? Thank you

The silver cup is: 2 1/2" tall and 1 7/8" rim to rim.

The side close to the rim has a hallmark and the bottom center also has one, please see photos.

[fidbald]

that's very worn off. but you could try the old flour trick - spread a bit on the mark, then softly blow over it and have a look if some details show up. same trick is sometimes showing something when you put some colored grease on it, wipe the superflous grease off.

the building could be some fortified cloister or abbey. Finland, Russia etc.

[lyonspuppy]

Thank you, I'll have to try that 🙂