c. 1880's antique american eastlake style interior residential "crisscross" pattern single pocket door mortise lock. designed and fabricated by the p. & f. corbin co., new britain, ct. features an ornamental cast brass faceplate fastened against a baked black enameled cast iron lock box. the push button, sliding handle and "finger" lock are all intact and in working condition. measures approximately 7 1/2 x 1 1/4 x 4 inches.