252 is the answer
A Guinea is 21 Shillings in the old predecimal British currency. There are 252 Pennies in a Guinea, therefore 504 Pennies is Two Guineas.
A guinea was defined as 21 shillings. Each shilling was worth 12 (old) pence so 1 guinea = 252s
This goes back to UK pre-decimal coinage. 252 Old Pennies in a Guinea
240- there were 12 pennies in a shilling and 20 shillings in a pound.
The British Guinea was a gold coin that was superceded by the Sovereign in 1816. There were 21 Shillings in a Guinea, and 12 Pennies in a Shilling. Therefore, 504 Pence equalled 2 Guineas.
The Royal Mint advises that in 2008, 180,600,000 Pennies of the old (Ironside) design were minted and, 386,830,000 Pennies of the new (Dent) design were minted. A total of 567,430,000 Pennies for 2008.
Old pennies
10 pennies...
The newer pennies have a different proportion of metal
Answer
50 pennies of course.
There are 307,087.5 pennies in one ton of pennies