Which two images were combined on the reverse of the 1976 U.S. Bicentennial dollar?

The reverse of the 1976 U.S. Bicentennial dollar combined the Liberty Bell and the Moon. Dennis R. Williams designed the image for the Eisenhower dollar as part of the temporary Bicentennial coin series.

The United States Mint held a public design competition for the three Bicentennial coin reverses. Williams was 22 when his design was selected, making him the youngest person to that point to design a U.S. coin. His composition placed the Liberty Bell over a lunar disk, linking the nation’s founding symbolism with the space age.

The other two circulating Bicentennial designs were different. The quarter showed a colonial drummer, while the half dollar depicted Independence Hall. Each coin also used the double date 1776–1976, even though coins were struck across more than one calendar year.

The design can be confused with the Liberty Bell imagery used on other U.S. commemorative coins. The Moon is the distinguishing feature of the Bicentennial dollar. The design was temporary: regular reverse designs returned after the Bicentennial coinage period ended.