1943-D Lincoln Bronze Penny Front
There is just one 1943-D Lincoln Bronze penny on the planet, and this is it. The coin was made in bronze alloy instead of zinc-plated steel. The Second World War was still raging at the time, so the mint tried to avoid making coins in copper and bronze. This is believed to be the only one from the Denver mint.

1943 D Lincoln Bronze Penny Front
1943-D Lincoln Bronze Penny Back
Even though there is only one known bronze 1943 Lincoln penny, the San Francisco mint created as many as twenty of these coins. The same is also true of the Philadelphia mint. The 1943-D Lincoln Bronze penny was sold for $1.7 million in a private sale by Legend Numismatics in Lincroft, New Jersey.

1943 D Lincoln Bronze Penny Back