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)
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)
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