Need help ID military naval button

[RelicMaster777]

Hey ya'll I need some held IDing this naval coat button I dug yesterday. It has two anchors and a canon under the shield. To me the two anchors under a shield is coast guard but I never saw that emblem with a canon. would love to get a ID and a approximate date. It is a two piece with two holes instead of a shank. WWI OR II or late 1800's Thanks

 

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[Steve in PA]

Pretty sure you have a 1900s blazer button there

 

[CRUSADER]

Agreed, steel-backs & salt water are not a good combination.

 

[Hawks88]

Nice finds. Congrats