1775

Richard Humphrey's sold 12 Tablespoons P£ 17.5625, or P£ 1.4625 each; 12 Teaspoons sold for P£ 4.8625, or P£ 0.4052 each.

His dessert spoons (18.42 cms @ 32.66 Grams); his Tablespoon typically weighed 63.89 Grams.

At the same time, 23.025 Ozt Manufactured Silver sold for ~17s./Ozt

4/7/75: 1 Troy Ounce Silverware ('Coin Silver' @ Phila.) = P£ 0.8520 (S$ 2.27)
4/7/75: 1 Troy Ounce Silverware (Labor @ Phila.) = P£ 0.4770 (S$ 1.2720)
 
April 7, 1775: 1 Troy Oz. Silver (.999) = P£ 0.9562 (S$ 2.55)
4/7/75: 1 Troy Ounce Silverware (Labor @ Phila.) = P£ 0.4760 (S$ 1.2693)

Where 1 (Mexican) Silver Dollar weighed 0.781 Fine Ag, S$1. = P£ 0.3750

1775: 1 Troy Oz. Silver (.999) = P£ 0.4802