IDL Pulse Height Analyser "Pulse Height Analyser 1870" 2 Controls: Auto/Manual, Threshold; 1 channel width switch; with voltmeter 0 - 50V by Isotopes Development Ltd 1870A Serial Number 76. Blue crackle metal case.
19th century lamp, in brass, with a carrying handle and a hinged pan holder. Instead of burning a normal candle it burns a long, red beeswax taper coiled round a central column and held by a clip.
Puirman, free-standing with a tripod base, and a circular top on which to stand the crusie or lamp. There is also a clip to hold a fir candle, a type of wooden taper. The puirman and crusie come from Aberdeenshire.