A 19th-Century lacquered-brass Swift sub-stage condenser,
A 19th-Century lacquered-brass Swift sub-stage condenser,

細節
A 19th-Century lacquered-brass Swift sub-stage condenser,
(old damages), with rotating prism, sheet of instructions and other items, in pine case -- 6in. (15.8cm.) wide; an erecting prism by Nachet, in plush-lined leather-covered box; a lacquered-brass cased glass viewer; a Newton's colour slide, in box; a PHONENDOSCOPE, in case with original instruction leaflet; a collection of twenty-two diatom slides; a simple microscope by C.A. Steinheil Shne MUENCHEN, with six eyepieces and eyepiece holder, in plush-lined leatherette-covered case -- 7in. (18.4cm.) wide, and the companion stand with articulated arm (A Lot)