There are 56 of the dollar coins in a pound, but as they are not bullion, it is not especially relevant.
The coin weighs 8.1 grams and there are 453.6 grams in a pound.
300 x 1.82 = 546 546 dollars
1.63
2.56
2
1.63
In 1813, 1 pound was 5 dollars 100 pound = 500 dollars
1 British pound sterling = about 1.6284 US dollars
163.82
1.64
304.35
1.63
1.64