Masonic Square and 47th Problem

[32degree]

Hello,
I was looking for some information on the pictured Masonic Jewel. It is claimed that the Jewel was made in 1871. There is a close up of a mark - COIN.

Is this indeed a makers mark? I have not found it in the Online Encyclopedia of Silver Marks, Hallmarks and Maker's Marks

Thank you to anyone who may be able to enlighten me!

https://www.flickr.com/photos/184480542@N05/48750138186/in/dateposted-public/
https://www.flickr.com/photos/184480542@N05/48750139106/in/dateposted-public/
https://www.flickr.com/photos/184480542@N05/48750139336/in/dateposted-public/

[dognose]

Hi,

Welcome to the Forum.

Please embed your images.

Trev.

[32degree]

Images:

[silverly]

Coin refers to the quality of the silver, 900 parts out of 1000.