Box labelled "Corder 1950-181 Harmonograph (spares)" filled with accessories for Corder's Harmonograph. Including: 37 brass gearwheels, drawings, a notebook, ruler, pens and brass components for chronograph. Box of accessories for Corder's Harmonograph
[Information leaflet] How to make a twin-elliptic Harmonograph / L. A. Breame [for Science Museum], 1980. [4p. on 1 leaf. An HMSO publication. Another copy is in Science Museum publications reference set (1975/2)] How to make a twin-elliptic Harmonograph 1980
Harmonograph invented by Frederick Corder, with accessories Harmonograph invented by Frederick Corder
Donkin's Harmonograph for compounding two simple harmonic motions, made in 1871, with five printed sheets showing curves obtained by a slightly modified instrument made by Tisley and Spiller Donkin's Harmonograph 1871-1873