I received this a few years ago as a gift from my mother. There is no provenance attached to it. Given it has a lobster claw, spring loaded clasp (and that it appears to be original to the piece) I doubt it could be anymore than 40 years old.
In searching the website and forums I couldn't ascertain anything all that useful. I have seen in conducting those searches examples of Scottish and Swedish marks where letters are contained within the lobes of a trefoil. However there is also wheel like mark. Perhaps a cartwheel? Which would make me think it could be American.
The BB mark confuses me as I am unsure about the score between the letters. An alternative to a period? The letters, I, L, or the number 1? the high placement between the B's makes it seem more likely to be a character than initialing punctuation. Given the 3rd letter in the Trefoil i think it's most likely an L (though it's very faded and I may just be making characters out of shadows).
To be clear I would like to know where and thereabouts of when it was made if at all possible. Any help would be greatly appreciated. Thank you for your time and attention.
Note: These are 1024x1024 .png images with the alpha channel removed (the minimum resolution I can have them scaled and cropped to without loosing detail). If they are too large my apologies. But preemptively in my defense "no larger than 7 inches or 18cm. in width." as given by the "Requirements *** READ BEFORE POSTING *** Important" topic is not a unit of measurement anyone can actually go by as images will appear at different scales depending on the individual user's display. A max resolution or Kb/Mb file size limit would be more workable/comprehensible. Aside from that as a possible exception I do feel I've conformed to the posting rules to the best of my understanding and ability.