Dan,
They are 1974S proof Eisenhower (Ike) dollars. There are 2 types. Clad & 40% Silver.Clad has a copper looking edge. Worth about $3 if no scratches. 40% silver has a silver edge. Originally came in a brown box. Worth about $6-$8. Be careful and handle by edge only. Hope this helps.

Rick (R-1924)