I just got these President cards. Are these H603? My bigger question is about a decision to sell individually or break-up the set. I have 20 of 22(I assume) missing Washington & John Adams. I have seen a variety of these cards over the years but these seem a little different in that each back is different. I've posted some of the backs, the backs not posted show one of the many products this Dambmann Bros. & Co. produced. The Lincoln card back is displayed along with some of the other intersting backs. It's not a complete set, VERY unlikely to ever find the 2 cards needed, I think I stand to make more selling individually but not sure this group should be broken up? Thoughts? Does anyone have any other Dambmann Bros. & Co. President cards or these types of cards with the Presidential candidates on the back?