Worth of a 1943 steel copper penny?

There isn't a "steel copper" penny.

US cents were made of steel - but no copper - during 1943 to conserve copper for use in ammunition. Up till 1982 other dates of cents were made of a bronze alloy that was 95% copper, but no steel.

A few 1943 cents were struck in bronze by accident but these are very rare and none have been found in many years.