McVitie Weston valve collection, Perrin tube valve
- Made:
- 1895
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Perrin tube valve, two ended glass tube 2.5in diam overall 1ft 8in long overall with 3 side tubes - 2 electrodes, 1 evacuating tube, anode electrode cap missing, (RMW/K17 - McVitie Weston number), by Unknown maker, 1895.
