Vintage milk bottle cap, J. F. GUTEKUNST DAIRY Raw Milk (not marked but this is from Moberly Missouri and that is written on the back in pencil), unused new old stock. See pictures for condition. Size is appx. 1 5/8" in diameter. NOTE: All of the milk bottle caps 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.