Union Made Flask Error

[glassgopher721]

I was going through the bottles that I dug last week and found this Union Made Flask. Take a look at the word Union. Is this a common error, and is it more valuable because of this? Anyone have one like this? Input please.

http://s561.photobucket.com/user/BassTurdNH/media/Bottle%20Digging%20Pics/004_zps084231c6.jpg.html

 

[RIBottleguy]

I have seen a few flasks, some Union and others not, with errors like that. For me it would make the difference of tossing it into the leftovers pile or bringing it home. It's cool, but $5-10 would be top dollar (at least in my opinion).