How do I know if my ball jars are vintage?

So if you have some old jars, how do you know their true age? If you have a Ball jar, you can date most of them just by looking at the logo. Every few years, the Ball Manufacturing Co changed the logo and if you compare yours to a reliable chart, you know how old it is. All you need is a chart like the one below.

What kind of mason jars are worth money?

An antique Ball brand perfect Mason jar sold on eBay for about $80, likely because its deep olive green color is relatively rare .According to Collectors Weekly, clear glass and aqua jars are quite common, but the following colors are rarer and more valuable:Amber.Green.Purple.Milk glass (white)Cobalt.