This vintage bottle is from the PURITY MILK CO. in Oil City, PA.This 1929 "Ribbed Neck" quart bottle is in "Excellent" condition showing only some very light case wear. It has no cracks, chips or fractures or staining. The bottle is embossed as follows: Neck: Fully Ribbed. Front: REGISTERED ONE QUART LIQUID Purity Milk Co. OIL CITY, PA. BBG CO 48 Bottom: 29 P The free listing tool. List your items fast and easy and manage your active items.