1. What showman is on the obverse of the Bridgeport, CT commemorative half dollar?
2. What metal was used in 5, 10 and 20-cruzeiros coins of Brazil after 1980?
3. Does the treasury seal appear to the left or the right of a 1981 $1 note?
4. What of the current clad coins did John R. Sinnock design?
5. Besides the copper-plated zinc cents, what U.S. coin has been officially plated?
