Details
Wavemeters:
a wavemeter by The Southend Radio Co. Ltd., Stileman's Works, Wickford, Essex, with Marconi Q valve in mahogany case with sloping ebonite front panel engraved F.Stollery Southend-on-sea and hinged lid with calibration chart for Mr. Stollery -- 9in. (25cm.) wide; and an Admiralty wavemeter with inductance in lid, variable and fixed condensers, circuit breaker and copper frame aerial in base compartment -- 8in. (22cm.) wide, circa 1916 (lacking buzzer, lid slide and calibration chart) (2)
a wavemeter by The Southend Radio Co. Ltd., Stileman's Works, Wickford, Essex, with Marconi Q valve in mahogany case with sloping ebonite front panel engraved F.Stollery Southend-on-sea and hinged lid with calibration chart for Mr. Stollery -- 9in. (25cm.) wide; and an Admiralty wavemeter with inductance in lid, variable and fixed condensers, circuit breaker and copper frame aerial in base compartment -- 8in. (22cm.) wide, circa 1916 (lacking buzzer, lid slide and calibration chart) (2)