Although none of these possible new Varieties have ever been found or submitted for authentication, certification and grading before, it is a very high possiblility that the coin is authentic and others exist. This overdate DDO looked identical to the 1942/1-D Mercury Dime Varieties and Dave (the COin Dealer) also had a 1942/1-D specimen for sale and it was used for comparison. You might want to take another extra long look at your 1942-P Mercury Dimes! I attended a local Ioin Show in Knoxville, Tennessee on Saturday and one of the Coin Dealers that I know had a 1942/1-P Mercury Dime that is apparently a new variety.
