The reverse of this great American image is seen here
[DOC] [TLE] First Committee's Design for America's Great Seal - 1776 [PAR] First Great Seal Committee  July/August 1776 ... For the reverse side of the seal: 
Hengist and Horsa, the two brothers who were ... is seen in the one eventually 
used above the radiant eye on the reverse side of the Great Seal: Annuit Coeptis.