what are the most expensive old coins?
['The Flowing Hair Silver/ Copper Dollar 1794/5 – $10 million.', 'The Double Eagle 1933 – $7.6 Million. ... ', 'The Saint-Gaudens Double Eagle 1907 – $7.6 Million. ... ', 'The Brasher Doubloon 1787 – $7.4 Million. ... ', 'Edward III Florin 1343 – $6.8 Million. ... ']