The maker's-mark on the back is most probably M.C. Lilley & Co. Columbus Ohio, who was a very prolific manufacturer of fraternal-lodge regalia. That company dates from 1870 through World War Two. The great heyday (highest membership numbers) of fraternal-lodge organizations, such as the Templars, was in the early 20th-Century. That fits in with the time-period of the other objects you've been finding at that site, and the manufacturer's time-in-business.