Three grand glass cells in cardboard box
Three grand glass cells in cardboard box
Clinical flame photometer, model 150, by Evans Electroselenium Ltd., British, c.1960-1970, with 6 boxes of spares
Three grand glass cells in cardboard box
Valve, by Mullard 25045, British, in cardboard box
Valve, by Mullard, 25045, British, in cardboard box
Cardboard box of assorted spares for flame photometer
Electronic circuit on printed circuit board, from flame photometers
Twelve assorted filters for flame photometer in metal box
Plastic box of assorted spares for flame photometer