Thanks for the comments, the Bar Zero, according to Mr. Steven's at Cuds on Coins is common, I have found several of these with cuds on the other letters in LIBERTY as well. I looked through three boxes of nickels with no results, until this one. This is my 32nd war nickel for the year and the Liberty Heads show up occasionally. Thanks for looking.
I don't know this all that well. Just looked like a die chip to me. How do you tell the difference between a chip and a cud?