Biunial lantern (magic or optical lantern)

Type of hardwaremagic or optical lantern
Nation of originunknown
Date of first manufactureunknown
Examples of this hardware Appleton's biunial lantern (biunial lantern, R.J. Appleton & Co., 1880s)
Archer's No. 1 biunial lantern (biunial lantern, Archer & Sons, 1880s)
Archer's No. 2 biunial lantern (biunial lantern, Archer & Sons, 1880s)
Archer's No. 3 biunial lantern (biunial lantern, Archer & Sons, 1880s)
Archer's No. 4 biunial lantern (biunial lantern, Archer & Sons, 1880s)
Bi-cylindrical lantern (biunial lantern, W.C. Hughes, 1875)
E. Mazo biunial magic lantern (biunial lantern, E. Mazo, n.d.)
Keevil lantern (biunial lantern, York & Son, 1870s)
Laterna Magica (biunial lantern, maker unknown, c.1880)
Place's biunial lantern (biunial lantern, J. Place, 1880s)
Unilux biunial lantern (biunial lantern, Archer & Sons, n.d.)
Related hardwaresee also Double lantern (magic or optical lantern)
References
(* = main subject)

Lewis Wright, Apparatus for scientific demonstration in NMLJ 2.1 (January 1981), pp. 5-6

John Barnes, The Barnes Museum: catalogue excerpts in NMLJ 1.2 (February 1979), p. 6

T.C. Hepworth and J.H. Pepper (comp. Tony Dugdale), A brief history of the lantern in NMLJ 1.1 (April 1978), p. 5

Catalogue for the Exhibition in NMLJ 1.1 (April 1978), p. 8

W.I. Chadwick and David Henry, The Dancer double lantern in NMLJ 3.1 (February 1984), p. 19

Glossary in NMLJ 1.1 (April 1978), p. 15

Dennis Crompton and Tony Dugdale, Scene on board in NMLJ 2.1 (January 1981), pp. 7-9

Illustrations inCatalogue for the Exhibition in NMLJ 1.1 (April 1978), 8
Dennis Crompton and Tony Dugdale, Scene on board in NMLJ 2.1 (January 1981), 7-9
NotesA 'biunial' lantern has two optical systems housed (usually one above the other) in a single lantern body, as opposed to a 'double' lantern which consists of a pair of lantern bodies usually arranged side by side. 
Lucerna ID no. 2000019Record created by Richard Crangle. Last updated 4 October 2016