Need help with error blue mason jar.

[Schlekewy]

Found this at a local thrift shop, various web searches bring up nothing. Anybody know if this is rare and valuable? Second picture if of a regular one I have.

 

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[Roger Mn.]

The jars were made different years.
http://home.earthlink.net/~raclay/DatingBalljars.HTML

This should help.
roger

 

[7centsworth]

That is not an error although it looks like it.That jar was only made 1913 and 1914 with the perfect offset like that. I just bought one just like it the other day for five dollars.