Collection of Industrial Testing Equipment Including Steam Engine Indicators and Weston Electrical Meters in Fitted Wooden Cases

Comprehensive collection of technical instruments housed in fitted wooden carrying cases. The lot includes steam engine indicator kits complete with pressure curve cards and hardware components, a Weston Polyphase Wattmeter Model 329 with calibration documentation, and a Weston Frequency Meter Model 339 with certification labels dated 1964. The equipment features metal construction with dials, gauges, and operational components preserved in felt and wood-lined storage boxes.