Here's a little history (that I probably stole from Researcher)
per
http://www.briley.com/articles/grampas_shotgun.html Crescent Fire Arms of Norwalk, Conn and H.∓D. Folsom of NY merged with N.R.Davis around 1900 becoming Crescent-Davis.
N.R. Davis of Assonet, Mass., started in the 1850's manufacturing muzzleloaders and one of America's earliest breech-loading doubles, a sliding breech pin-fire. By WW-I time the Warner Arms Corp had bought into N.R. Davis and in 1917 bought out the Davis family and by 1919 moved the entire assets of N. R. Davis to Norwich, Conn. They continued to make doubles under the N.R. Davis name and the hammerless models were named "MAXIM," "AJAX," and "EXPERT." Eventually Savage acquired Davis-Warner and about the same time Crescent Arms Company. They then advertised a line of Crescent-Davis guns in the back of their Stevens wholesale price list, even behind the "cheaper than Stevens" Springfield line, through the late 1930's and early 40's.
There was a good article on the Crescent in
Shooting Sportsman Sept/Oct 2001.
The Folsom 'Crescent' name was also applied to utility grade, mostly Belgium imports, of variable quality in the early 1900s.
