Backside is an endorsement of Castoria by PT Barnum.
Condition: Light stain on upper right corner. A paper pull on the back and also some writing in ink (looks like some cheapskate New Yorker presented this free car to a lady friend to show his affection, lol)
Otherwise in good condition with no rips, bends or creases and only the normal corner rounding expected with a trade card of this age.
3" by 4"