Preserving Jars – Top Row Left: Blue-green glass jar, “Ball Perfect Mason” on front, raised letters, number “7” raised on bottom, threaded top. Porcelain lined zinc lid, “CAP 103, Boyd’s Genuine Porcelain” inscribed around the edge, “7” in the middle. Right: Blue green round glass jar, “Atlas Strong Shoulder, Mason” in raised letters on front. Number “3” on bottom. Screw top. Porcelain lined zinc lid. Cap “258”, “Boyd’s”, Cap “I”.  Bottom Row Left: Blue green round glass jar, “Ball Perfect Mason” in raised Letters on front. Number “4” on bottom. Screw top. Zinc lid with porcelain liner. “Cap 165”, Number “7“.  Right: Blue green glass jar, “Atlas Stronger Shoulder, Mason” in raised letters on front. Screw top. Zinc lid, porcelain lined. “Genuine Porcelain Lined, Cap 46, Boyd’s” around inside edge. “O” in middle. Purchased at Naomi Tilbury garage sale, and donated to NHS.