Accession Number: 2009.uc.21
Wooden case with removable back panel; circular glass face protector at front; white face with measurement scale in degrees marked “70-0-70”; double-ended needle behind a silver metal bar points to degrees; brass knop with ring at top of centre; three brass terminals on top of case behind the knop with ring; in between brass terminals the letters “I” and “Q”; inside: black fabric panels containing electromagnet behind vertical brass bar;
Primary Materials: wood, glass, brass
Old Inventory Number = “uc21”; dial labelled “EDISON & SWAN/No 25535/1919”; inside “F141” written twice in pencil or ballpoint.
Dimensions (cm): Height = 9, Width = 5.3, Length = 6.5
Manufacturer: Edison & Swan
Date of Manufacture: 1919