Iona Scottish Sterling Silver Green Agate Celtic Brooch h/m 1959 Robert Allison

This is a vintage sterling silver and green agate brooch from Scotland and has a locking clasp - in very good condition - size is 40mms in diameter and weighs a heavy 17 grams. This brooch is fully hallmarked for Glasgow 1959 and stamped with makers mark "RA" for Robert Allison.