This is a real serving tray by Coca Cola made in the 1990's. The image on the top side is a reproduction of a 1915 in-store advertising poster. The boy has worked up a thirst from swimming, but the teasing girl is leaving him empty handed.
The lad has decided to soften her up with a proposed trade; I mean...who wouldn't want a giant salamander; fresh from the bottom of the Big Muddy?