Vintage coaster, BLATZ Brewing Better Beer for the 97th Year Blatz Brewing Company Milwaukee Wis., this dates to 1948, in n-mint unused new old stock condition. Bit of age toning. Size is 4 1/4" in diameter. Scans shows the front, back is blank. The black background is so all the edges can be seen and is not part of the coaster itself. NOTE: All of the advertising items I have listed are guaranteed to be 100% authentic originals. They are all clean and ready for display. Thank you for your purchase I appreciate it.