✅ SOLVED Markings on Masonic lapel pin

[postalgriff]

I was wondering if anyone might recognize the stamp on the back of this pin. I don't have a good idea of the age or where it was made so any help would be greatly appreciated. The back looks gold to me but I'm not sure. Thanks in advance, Griff.

 

[nhbenz]

H&O is Harvey & Otis

 

[postalgriff]

Thank you for the super fast reply!