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Assayer's Silver Weights

The richness or purity of silver is either expressed in pennyweights or To. In the first case, it is supposed that the mass of silver to 50,796.94 = 5.080 Myriagrams be examined consists of 12 equal parts, called 12,699.23 = 1.270 Myriagrams pennyweights; so that if an ingot weighs an 453.54 = 4.535 Hectograms ounce, each of the parts will be of an 28.34 =2.834 Dekagrams ounce. Hence, if the mass of silver be pure, it is called silver of 12 pennyweights; if it 1.77 5942. Troy Weightis used by jewelers contains of its weight of alloy, it is called for weighing gold, silver, platina, and all silver of 11 pennyweights; if 2/2 of its precious stones except the diamond; and is weight be alloy, it is called silver of 10 pennythe weight adopted by the mint. The pound weights; and so on in proportion for other Troy contains 5.760 grains. 1 = 12 = 240 = 5760 = = Pound. Ounces. Pennyweights. Grains. = 20 480 1 24 1 = = 1 qualities. It must be observed here, that the assayers give the name pennyweight to a weight equal to 24 real grains, which must not be confounded with their ideal weights.

The assayer's grains are called fine grains.

An ingot of fine silver, or silver of 12 penny-