Medallions from the Daughters of The Republic of Texas

I have been coming across some interesting medallions on some of the graves stones of early Texans and have been wondering where they come from.  I have found a source of one with The Daughters of The Republic of Texas.  They have a web page where you can order these and other medallions to be placed at graves, memorials or historical sites of people who lived and were apart of the The Republic of Texas.

Seen on a grave in Bagdad Cemetery