mystery Button

[radian12]

Found button at old school in Southern il. Found similar buttons but none exact match. Appears to be navy

 

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[fyrffytr1]

Can you post a picture of the back? And, can you read the backmark? A quick look at "Albert's" book came up with no match.

 

[TheCannonballGuy]

It is a British "Merchant Navy" Officer button. (Actual British Navy buttons have the British Crown atop the anchor.) Because yours is a domed 2-piece brass button, it can date anytime from approximately the 1830s into the 20th century. To narrow down that wide time-range, we'll need to see a closeup photo of its back, with a readable backmark.