An exceptional Geissler tube,
the 1¾in. diameter tube with liquid-filled spiral twist and bulb centre, trumpet ends and electrodes -- 49in. (124.5cm.) long, and a component tube with spiral and twist centres, trumpet ends on pear-shaped bulbs -- 43¼in. (110cm.) long, in the original paper-lined carrying case, fitted for three tubes -- 50¾in. (129cm.) long
See Illustration (2)
Lot Essay
Both tubes were tested for operation at the time of delivery to the saleroom and were seen to be working