An Award of Merit was one of the first pieces of ephemera I got. I found it at an old bookstore in Oakland in the late 80's and kept it displayed in my house for a long time.
Most Rewards of Merit are about 3.5 x 5, some are smaller like a business card and some are larger like a 5x7 size. This one below is large and a unique image for a Rewards of Merit card. It just says the name Ethel on the back.
I listed some of my collection of Reward of Merit cards in the Etsy shop today.