If you are an owner of one (or more) of the estimated tens of thousands of unopened 2002-S Silver Proof Sets you may be in for a pleasant surprise! Numismatic News has just reported upon a set that contains a Kennedy half dollar with a very prominent “Spiked Head” die crack that error coin dealers around the country estimate will at least double or even possibly quadruple the value of the set!

The set was found by Springfield, Mass., collector Karl Krokenberger who purchased it unopened from the Springfield based Coin And Card Exchange in late October of 2002 and later discovered that the Kennedy half contained a very prominent die crack that ran from just above the center of Kennedy’s portrait up to the rim at about 12 O’clock.

Error dealer’s Fred Weinberg of Weinberg of Encino, California; Rich Schemmer of Franklin Square, New York, and Chuck Avery of Grand Rapids, Michigan, estimated its value (as a single coin) as ranging from $100.00 to $300.00.