1926 Sesquicentennial Silver Commemorative Half Dollar - NGC MS 64+ Fr.1903-F* The thin planchet variety is

The thin planchet variety is a bit more scarce than the thick

Mountain peak

giving them an obvious-to-the-naked-eye prooflike finish

the dime is dropped out through a slot in the lead container and rests momentarily before a Geiger tube so that its radioactivity may be demonstrated

Red seal with long thin key

1926 Sesquicentennial Silver Commemorative Half Dollar - NGC MS 64+ Fr.1903-F* The thin planchet variety isGrade: NGC MS 64+ The 150th anniversary of the signing of the Declaration of Independence was cause for an international fair in 1926. To help raise funds for that fair the 1926 Sesqui Half was struck. The obverse features the first living president to appear on a U. S. coin bearing the likenesses of both George Washington and Calvin Coolidge. The reverse is dominated by the Liberty Bell. Mintage: 141,120