Old Polish World War 1 Metal?

[jolteon]

Good afternoon everything. I have here an old war metal about general Gen Josef Haller. It belonged to my great great grandfather and my grandmother would like to learn about it. My grandmother really wanted to know about this metal such as.
Mintage rarity
Who was this awarded to anybody or special scenario
History of the metal
And least important but if it's worth anything

Any information would be great! I would love to tell my grandmother as much as I can about the metal so any information would be great! Thanks guys

 

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[grasshopper]

From what I see after a quick search is that it is a medal commemorating his trip to the United States for the Dedication of the Blue Army Monument in Chicago. As such, the date on the medal is when it was made. I found a few sources with asking prices ranging from $25 - $60. Not sure on rarity, but there doesn't seem to be a ton of examples listed online.

 

[NOLA_Ken]

It's got a pretty great story behind it, I'd agree that it's a commemorative piece and not an actual military award. Still definitely cool and I would imagine made in pretty small numbers. What is the print on the back of the ribbon?

Haller's Army, The Polish Army in France in WWI also known as the Haller Army - The Blue Army