Civil War Naval Button?

[WILTON]

Hello all. Can someone please verify what I have here? From my Googling I think this is a Civil War era Union Naval blouse button. Approximately 3/4" and marked Extra Quality on the back. What is the value? Thank you.

 

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[alabama11]

If you find the post on jan 7 2017 by Rick67 he gives a sood answer for when i posted one very much like that. Great find. Hunt there some more. Odd Eagle facing left.