NGC PROOF 69 STAR CAMEO. SIGNED BY ASTRONAUT CHARLIE DUKE. PROOF 69 STAR GRADE MAKES IT THE FINEST KNOWN FOR SALE. The item "1972 s $1 Silver Eisenhower Dollar NGC PF 69 Cam Duke" is in sale since Friday, April 17, 2020.This item is in the category "Coins & Paper Money\Coins\ US\Dollars\Eisenhower (1971-78)". The seller is "planetx5613" and is located in Ronkonkoma, New York. This item can be shipped worldwide.