I had these two links I used for reference, you can check the error's/variations against the Master list already posted in an above link.
I know the Carl Erskine Card #10 in not on the list. The link below has it in a blog hosted by a member of Net 54 (give credit where it is due).
http://tradingcarddb.com/Errors.cfm/sid/30/1954-Bowman
http://boblemke.blogspot.com/2009/09...54-bowman.html
(Carl Erskine Error/Variation Card #10)
Mike