Picked these up the other day, and I'd never heard of this back before. Has a 10 cent tax stamp.
So Blue Ribbon comes in Rosette, Urn, Acorn, Meadow - any other surprises? Any idea which are more scarce than others? I'm guessing Rosette, Urn, Acorn, Meadow
Update: Known named backs: Rosette, Filigree, Urn, Acorn, Meadow, Koh-I-Noor
Update 4/20: Known named backs: Rosette, Filigree, Urn, Acorn, Meadow, Koh-I-Noor, Wicker