Antique Scottish Pebble Bow Pendant Brooch

Beautiful antique bow brooch from Scotland. Likely sterling silver and agate but not marked, as was the style of the time. This is likely Victorian, pre-1900s. Sort of a green and pink with a white central section. In good antique condition with one side of the back pin broken off. There is a loop that could be affixed with a metal circle to turn it into a pendant for a necklace. Similar pieces are priced around $400 online. Want more info? Pop into my next Posh live show :)