Volt meter Designer (Person) Unknown Manufacturer Westinghouse Electric Company Date 1939 - 1970 (circa)
Button mould impression insert Designer (Person) Unknown Manufactured for James Grove & Sons Date 1860 - 1950 (circa)
3 strength magnifying glass set Designer (Person) Unknown Manufacturer Unknown Date 1840 - 1869 (circa)
Multi-magnifying optician's set Designer (Person) Unknown Manufacturer Unknown Date 1800 - 1899 (circa)