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 is an excellent article on N.R. Davis in The Gun Report, Volume 35, Number 11, April 1990, by Cdr Gunther who often contributes at this board. I believe they sell back issues -- phone (309) 582-5311.