A Vintage Celtic style faux Connemara marble, agate and tortoise shell art glass bar brooch manufactured under the trade name Miracle by A Hill and company Ltd. The brooch has a large central faux agate, which is set either side by four further mock gem glass cabochons, forming a bar brooch, set in an gold tone setting. Circa 1970's - 80's. Signed Miracle to the back of the brooch.