1797

London:

S$ 1. =  £ 0.2375









USA:




c. 1797: USD $1. = 0.853645835 Ozt; 0.9166667 Fine = 0.78250868 Ozt Fine Ag



1797: $1. = Ma£ 0.30 ; Ma£ 1. = $3.33



  
1797: 1 Troy Oz. Silver (US Coin .999 Ag) = $ 1.293

For Elias Derby, Paul Revere's 12 Tumblers weighed 41.55 Ozt and cost Ma£ 14.8875: 

1797: 1 Troy Oz. Silverware (Total Mfg: Cup) = Ma£ 0.3583 (USD$ 1.1943)
1797: 1 Troy Oz. Silverware (Mfg) = Ma£ 0.2599
1797: 1 Troy Oz. Silverware (Cyphering?) = Ma£ 0.0984

1797: 1 Troy Oz. Silverware (Premium Cost, .891) ~ Ma£ 0.7039 (USD$ 2.3464)
1797: 1 Troy Oz. Silver (Premium, .999) ~ Ma£ 0.7900 (USD$ 2.6335)

 

Russia: