Item FJ018, Red Book #2385, POTTER & BODINE'S / AIR TIGHT / FRUIT JAR / PHILADA - PATENTED / APRIL 13TH 1858, aqua, Quart. The wax seal groove was formed by depressing the blown projection on the neck of the jar while the glass was still in an elastic state. Bold embossing, lots of tiny to small bubbles in the glass, has some interior dullness and a few minor scratches, otherwise perfect, a nice example of this very rare early jar, Sold