This item is a vintage Megger Insulation & Continuity Tester, Series 3 Mark III, featuring a black casing and an analog display. Manufacturer: Evershed & Vignoles Ltd., London, England. Era: Roughly mid-20th century, used for electrical testing between approximately 1955 and 1990. Features: It includes a hand crank and a clearly labeled dial for measuring insulation resistance. Included Accessories: It comes with its original brown leather carrying case. Disclaimer: Old electrical equipment should be handled with caution and verified for safety before use. Sold as untested please see photos for detail of condition
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