I know little about these other than they were my grandads and he died in 1976! Found in boxes of my Nan and Grandads stuff up my dad’s loft - as he passed away end of 2025.

They are gold gilt and stamped with a number I can’t quite make out - see photos on the inner arms that connect through shirt cuffs etc. no idea what the decorative front is made from?

Would defo benefit from a good clean! My grandad lived and worked in the East of London eg Old Kent Road area so likely to have been a jewellers around that area I suspect where he purchased from