Buttons from WWI

[quahog]

I've found 3 buttons from WWI. I've been able to identify them, but have yet to figure out how much they are worth! The first one is WWI US 30th infantry company D 3rd division collar disc, second, WWI US Army Quartermaster Corps Collar disc, and the third is a WWI Great Seal button.



Any info would be greatly appreciated!

 

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