Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
That is a nice button. If I read my book right your button would date post 1870. The clue is the large lettering in the back mark. Small lettering would date it c1850-1870
I used "American Military Button Makers and Dealers;Their Backmarks and Dates" by William F. McGuinn and Bruce S. Bazelon. Page 113 about halfway down the page. And, to answer your other question; there is a _under the O in Co.What book are u using ,if you don't mind?
& On the Op's Button , is there a small - under the 'o' in "Co?
Thanks