The fourth is stamped "CJ" for Caithness Jewellery with Edinburgh hallmark for 1973 weighing 23.7 grams showing in photos 13 to 16. The fifth is stamped "CJ" for Caithness Jewellery with Edinburgh hallmak for 1981 weighing 22.2 grams showing in photos 17 to 20. The sixth is stamped "CJ" for Caithness Jewellery with edinburgh hallmark for 1981 weighing 23.8 grams showing in photos 21 to 24.