What is a 1937 wheat penny worth?
1937 is a common date for Lincoln cents. If circulated, it's worth about 2 cents. A nice uncirculated coin is worth about 50 cents.
According to a 2014 coin price chart, there is no wheat penny that is worth $12,500. There is, however, a 1922 (no mint mark) wheat penny worth about $500 in circulated condition and $20,000 in mint condition. The highest price penny like this is a 1944 Steel penny that is worth $100,000 in mint condition and $4,000 in circulated condition.