Helioscope Lantern Original Box
Helioscope lantern original box by J Walter Tyler, 48 Waterloo Road, London SE.
Helioscopic lantern by J Walter Tyler, 48 Waterloo Road, London SE. New pattern, Patent No 2459, Rgd No 73681. Iron and brass lantern. Double plano-convex condenser. 8 inch projection lens with flasher, Rgd No 230577. Rack and pinion focusing and filter slot. Modified for electric light, tray with ES base 240v, 250w lamp. Two side doors to lamphouse with blue filters and covers.
Helioscope lantern original box by J Walter Tyler, 48 Waterloo Road, London SE.
Helioscope lantern orginal instructions by J Walter Tyler, 48 Waterloo Road, London SE.
Helioscope lantern slide carrier including eclipse by J Walter Tyler, 48 Waterloo Road, London SE.
Helioscopic lantern by J Walter Tyler, 48 Waterloo Road, London SE. New pattern, Patent No 2459, Rgd No 73681. Iron and brass lantern. Double plano-convex condenser. 8 inch projection lens with flasher, Rgd No 230577. Rack and pinion focusing and filter slot. Modified for electric light, tray with ES base 240v, 250w lamp. Two side doors to lamphouse with blue filters and covers.