1987 1 Oz Britannia PF70UC

Manufacturer: Royal Mint

Weight (grams): One Ounce (31.103grams)

Pure gold content (grams): 31.10348

Fineness: 916.7

Dimensions: 32.60mm Diameter x 2.79mm Thick

 

The non-gold content in this coin was copper for this year. The face value £100 coin contains one ounce (31.1g) of fine gold. The coin is heavier than this weight however, as it is struck to be 22-carat as was traditional at this time for the series.