Naval Button Identification (fouled anchor with crown)

[Gakr]

I know just about nothing about buttons other than I found one.
The button is 1 inch in diameter (24mm)
It has a non-ferrous front and steel back.

The button looks Royal Navy? (the crown at the top) of a fouled anchor.



There are no marking visible and the shank is all but gone
Can someone help identify this for me, and an approximate dating?

Thanks, first time on the form. Let's see if I can get the pictures to post.

 

Amazon Forum Fav 👍

A History of Mining on the Kenai Peninsula, Alaska - Grab it through Amazon!

[ticndig]

The tin back tells me it is a fashion button , maybe off of a pea coat from the 70s.

 

[Lenrac2]

Nice find! Welcome to TNet!