Vintage label, ARC BAKING POWDER Allen - Rethemeyer Co. St. Louis U.S.A., One Pound size, in n-mint unused new old stock condition. Couple of spots/bumps. Size is 5" x 11 1/4". Scans show the front, back is blank. The black border is so all the edges can be seen and is not part of the label 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.