Here is a vintage stamp printing block for advertising.. It is from Pratts Feed Co of Glendale, Arizona.. On the block are 4 chickens. with different diseases...with a chick on it.. a Pratts feed bag... Pratts Double Duty --egg in the middle.. and a discription of the product..The vintage block is from the 1940s.. is 4 by 5 1/2 is 1"wide and is in good conditiion..one area has something on it..you can get it off..