Vintage Scottish Sterling Silver & Glass Citrine Gemstone Brooch By The Ward Brothers, the huge deep orange glass gemstone is beautiful. This is one of the largest stones I have seen in this kind of brooch, it is set in a raised setting to allow the light to show off the beautiful deep golden orange colour of the stone. The brooch is hallmarked with the makers mark "WBS", the sterling silver Thistle mark, the Edinburgh castle mark and the date letter "I" for 1964. It measures approx 4.4 cm across, the stone is approx 3.4 cm wide. It weighs 28.5 grams. The brooch is in excellent condition, the stone have a few very small nibbles which are only noticeable with a loupe.