Question: What do the numbers on the bottom of old Mason jars mean?

Many Ball mason jars have a number printed on the bottom of the jar, but this is a mold number that does not indicate the year of production. Rather, the mold number tells you where the jar was positioned on the glass-making machine that was used to produce it.

Which Mason jars are collectible?

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.

What Ball jars are worth the most?

The most valuable mason jars are:Van Vliet Improved Jar – $23,500.Black Amber Magic Star Fruit Jar – $3,000. 1933 Ball Upside Down Error Jar – $1,000. There are two types of Ball upside-down Mason jars. The 1870 Chief Mason Jar – $800. (Photo: gregspurgeon.com) 1858 Willoughby Stopple Jar – $500. (Photo: hoosierjar.com) Apr 23, 2021

What is the rarest ball jar?

10 Rarest Mason Jars Ever MadeMasons Improved Jar.Masons Zinc Lid Jar.Amber Beaver Jar.The Chief Mason Jar.Willoughby Stopple Jar.Black Amber Magic Star Fruit Jar.Ball Upside Down Error Jar.Van Vliet Improved Jar.More items •4 Feb 2021

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