Unknown mark (BB) on Sterling Silver Amber Bracelet

[jar1918]

I purchased this amber bracelet from a German jeweler as a gift. I would really appreciate it if someone could tell me a little about the marks and their origin, an approximate date (I was told around 1920). I looked quite a bit but could not find anything. Thank you very much in advance.

The whole bracelet


Detail #1

Detail#2 (cannot tell what the 2 letters are before the BB, perhaps a b.e

[Traintime]

Letters in Detail #2 are a repetition of "Ste" mark...the t was not well stamped.

[jar1918]

Letters in Detail #2 are a repetition of "Ste" mark...the t was not well stamped.

Thank you very much for that note! I actually though that it could be a "t". Any ideas about the country of origin, age or the BB? Also wondering about the cloud-shaped stamp. Thank you again for your assistance.