1855 c. 122 §14 Loophole frames may be fixed within one inch and a half of the face of any external wall.
1866 3rd Ser. 9 447/2 A solidly constructed stone staircase that conducts to several dark and loophole-lighted chambers.
1891 16 Nov. 7/1 I broke and cut a board from one of the loophole doors.