1802: Russian Rouble/Dollar

UK, 1802:

Early 1802:

Citation: Modern Geography: A Description of the Empires, Kingdoms, States ..., Vol. 1 John Pinkerton, Benjamin Smith Barton

Also see Hatchett's important study of coin-wear:

USA:

1802: Average Weight of The Silver Dollar?

1802 textbook:

Kelley's Universal Cambist (1811), apparently with 1809 (1810?) assays. 

$1. = 0.870833335 Ozt @ .88125 Fine Silver  = 368.3625 Grains Fine Ag 

Where 1 Dozen Tablespoons cost NY£ 16.2667, 12 Teaspoons cost NY£ 5.2667; 1/3rd the weight.

 1802: American Cambist

Russia, 1802:

USA:

c.1802: Dated standard, already debased

USA: 1 Silver Rouble= USD$ 0.55;

 

Russia

c.1801?
 
c. 1802:
1 Ducat = 2.5 Silver Rouble = 3.60 - 3.90 Roubles Banco






Germany, 1802: