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Direct current voltage meter. Large wooden case measures 21cms high x 12cms x 20cms. There are 2 applied labels, the one on the box says Thermocouple Indicator the other on the instrument says Pyrometer Indicator Original compliance plate attached to the instrument, the instrument casing is black bakelite & measures 18.5cms square x 8cms high. The text on the wooden case has not been translated. Sold as UNTESTED & AS IS with any faults, missing parts, damages etc. No idea of its history or exact use.
Local Brisbane pick-up welcomed. Always happy to combine postage where possible & practical.