Amsler integrator in box, with brush, two screw drivers and rail in separate box Amsler integrator in box
Computing integrator for Pye 104 gas chromatograph. Computing Integrator for Pye 104 Gas Chromatograph circa 1975
Integrator- 2 sets of Integrator, marked 5" and 3" above of each, mounted on a square wooden board. Underneath the integrators there are 4 circular parts with thin metal pipes attached across. Manufactured by Curnon Engineering Company, Manchester. Curnon Engineering integrators circa 1910-20
Hele-Shaw's integrator, engraved "G. Coradi, Zurich, no.16". Comes with a brush and two screw drivers. Hele-Shaw's integrator 1915
C.V. Boys' curve drawing integrator, designed c. 1881. Comes with a drawinig component. integrator 1880-1885