Appleton's triple lantern (triunial or triple lantern, R.J. Appleton & Co., 1880s)
Woodcut illustration from The indispensable handbook..., 1888.
manufacturer: R.J. Appleton & Co.
unknown
“Details. — Mahogany body with six doors, brass flanged sight holes, entire brass fronts and stages, 4in. condensers, sets of achromatic object lenses of 8, 10, and 12in. focus, mounted in brass cells, with rack and pinion adjustment and flashing shutters, curtain diaphragm. The top lantern takes off and fits into extra base board, with extra dome top. Three blow through jets, and two dissolvers, brass supply tubes, double set of lengthening tubes for lenses. The case has a shelf and rising top, to form stand.
Remarks. — This is certainly a well-finished apparatus at a cheap price.”
Record created by Richard Crangle. Last updated 10 October 2020
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