Kolb-Sedgley “BABY HAMMERLESS”

Sedgley “BABY HAMMERLESS MODEL 1916?  This Revolver, made circa the  1920s in Philadelphia, Pennsylvania.  Guns International suggests this  design seems to have originated with the company Foehl & Weeks.  However the distinct shape and action also suggests influence of the  Spanish company MAB and some belgian gun makers. The sedgley companies  later were absorbed by the Columbian Firearms Manufacturing Company.   Iver Johnson and Harrington and Richards were believed to be part of  that same group at one time or another NRA ref