Originally Posted By: Shotgunlover
Boxlock is the OLDER of the two, patented in 1875 while the Purdey sidelock came along in 1880 and the Holland in 1893.The boxlock introduced barrel cocking that made the sidelock possible..


The Scott & Baker patent #761 of 1878 is the hammerless sidelock that I would consider to be the one that started it all in regards to hammerless sidelock Sporting guns.