Looking at error coins on ebay I noticed a 1988-P lincoln that was missing the designers initials. The bids were only up to $10, but the coin was listed as "one of a kind" OK I know everyone when selling has one of a kind coins. My question is, how often is a lincoln struck with out the FG either because of grease or other factors. I have a 1969-D with no FG and had it placed along with my other "struck through grease etc. lincolns. Thanks for your help Bill