Help with the old button. (Salzburg)

[Bob-E-Pin]

So the button I found with the coat of arms is a Salzburg and I have found many pictures on line but no age. All sites just say its antique. Any idea on age guys. It was 11 1/2 inches deep. . Thanks

 

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[tennessee digger]

It will be hard to date without see the back and reading the back mark if it has one. Tennessee digger

 

[Bob-E-Pin]

Thanks Digger. I will get it cleaned up. The back is packed with gunk