So, I guess this token was a pin at one point. Apparently the pin was soldered to back, thus the marking on the back that is horizontal on the token. The K.B. on the obverse is for a knight banneret. (A knight banneret, sometimes known simply as banneret, was a Medieval knight ("a commoner of rank") who led a company of troops during time of war under his own banner (which was square-shaped, in contrast to the tapering standard or the pennon flown by the lower-ranking knights) and were eligible to bear supporters in English heraldry. The military rank of a knight banneret was higher than a knight bachelor (who fought under another's banner), but lower than an earl or duke.)
Knight banneret - Wikipedia, the free encyclopedia
The Green Duck Company, or the Green Duck Metal Stamping Company, was a prolific company that produced a wide variety of metal products, most notable among those being their political campaign buttons. Started in Chicago, Illinois in 1906, the company bounced around various Chicago addresses for nearly 70 years before moving to Hernando, Mississippi in 1975, closing it doors in 2004.
Scoop - Where the Magic of Collecting Comes Alive! - Green Duck Company Archives Offered at Hake?s
All I can find about the National Tuberculosis Association is that is ran from 1904-1954
