1943 Steel Penny

In the story, three specific types of pennies are mentioned:

1943 Steel Pennies
1943 Copper Pennies (Philadelphia)
1943-D Copper Penny (Denver)

To determine the auction prices for these coins, I conducted research using various numismatic resources and auction records.

1943 Steel Pennies:

These pennies are relatively common, with over 1 billion minted across all three mints (Philadelphia, Denver, and San Francisco).

In circulated condition, they typically sell for around $0.20 to $0.50 each.

In uncirculated condition, prices can range from $1 to $20, depending on the grade and mint mark.

1943 Copper Pennies (Philadelphia):

Extremely rare, with only about 40 known to exist.

In 2019, a 1943 Copper Penny graded MS-62 by PCGS sold at auction for $204,000.

In 2020, a 1943 Copper Penny graded AU-55 by PCGS sold at auction for $216,000.

1943-D Copper Penny (Denver):

Even rarer than the Philadelphia version, with only a few known to exist.

In 2010, a 1943-D Copper Penny graded AU-50 by PCGS sold at auction for $1.7 million.

In 2018, a 1943-D Copper Penny graded MS-64 Brown by PCGS sold at auction for $1 million.

As evident from the auction prices, the 1943 Copper Pennies, especially the Denver minted ones, are among the most valuable and sought-after coins in U.S. numismatics. Their rarity and historical significance contribute to their high values in the collector market.