Saturday Sketch Day #1: Julie Schwartz's Birthday Card
Because it's history, that's why. It's drawn by Norm, when he was arguably at his peak of popularity drawing Batman (but not his artistic peak - that's not happened yet) and given to the legendary Julie Schwartz - what more could you want? As with all such illustrations, Norm verified the work as being 100% genuine before I bought it, always a good thing to have the back story and provenance all set before pulling the financial trigger.
So, here it is, Julie Schwartz's 77th birthday card, as drawn by Norm Breyfogle!