Its like a bobbin with 2 (round shaped) arrows to the A on top of it.
I hope the photo is clear its very small, hope to find the maker and working period.
Thanks

Thank you very muchFunkel wrote: Thu Jan 25, 2024 6:29 am Good morning
The brand was registered in 1945, canceled in 1969 and belongs to Alexandre Pimenta, a silversmith from Porto - Portugal.