Coin
Value
Weight
obol 1/6 drachma 0.7g
diobol 1/3 drachma 1.4g
drachma   4.1g
didrachm 2 drachmae 8.2g
tetradrachm 4 drachmae 16.4g
penny 1/100 dollar  
nickel    
dime    
quarter    
half—dollar    
dollar