I found the following jar at a yardsale and would love some insight into it (history, value, date, etc). It's a very light aqua color, "Genuine Porcelain lined mason cap" screw top lid, a keystone and "MASON PATENT NOV 30th 1858" on the front, and 72 on the base. After preliminary research, I've found some jars that have arched "Mason's" (note the "s") but none with the Mason straight across and lacking the s like this one. I've also found some jars that have "Fruit Jar" in between the Mason and Patent lines. I'd appreciate any insight/help you're able to offer. TIA!