Vintage milk bottle cap, YASGUR'S SULLIVAN COUNTY DAIRY (Bethel New York), this was the site of Woodstock, unused new old stock. Rare cap. See pictures for condition. Size is appx. 1 5/8" in diameter. NOTE: The caps I am listing are part of my private collection which I will be selling off over the next year or two. Check back often as I am sure there will be some rare caps among these. Thank you for your purchase, I appreciate it.