In the archive, we discovered the designs for what we believe to be the 1973 Christmas Card from the Latent Image, presumably designed and drawn by George Romero himself. The first image more or less replicates Romero's doodle of a caveman, and then the image presumably designed for the inside of the card is this, with the caveman scampering away after bonking Santa on the head and stealing his hat. 

-Adam Charles Hart