Vintage milk bottle caps, Lot of 25, ENGELHARDT'S DAIRY (not marked but these are from Bay City Michigan), Pasteurized Milk, unused new old stock. See pictures for condition. You get 25 for one price. Size is appx. 1 7/16" 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.