Henrici's harmonic analyser
1887-1890
Yule Harmonic analyser made by Cambridge Instrument Company Ltd. Pat. No. 14928
1890-1894
Kelvin's Harmonic Analyser
1878
Henrici's harmonic analyser, No 3, 1894.
1894
Harmonic analyser
Harmonic analyser
1929
Kelvin's harmonic analyses for tidal computations
1878
Michelson 80-Element Harmonic analyser
1897-1904
Harmonic analyser by Stanley
1948-1951
Prototype of Yule Harmonic Analyser
Stanley Harmonic Analyser in fitted wooden case (one planimeter missing)
1958