Details
A late 19th-Century Lord Kelvin's Patent Multi-Cellular Volt Meter,
by James White Glasgow No. 804, the brass cylindrical cover with window, secured by four screws, with removable cap and adjusting mechanism dust screw, arranged so as to lift off revealing the finely balanced mirror, coils and mechanism, with two bubble-levels, on three adjustable screw feet, the cover with Board of Trade Electrical Standards Laboratory label No. 211 -- 19.5/8in. (49.8cm.) high
See Illustration
by James White Glasgow No. 804, the brass cylindrical cover with window, secured by four screws, with removable cap and adjusting mechanism dust screw, arranged so as to lift off revealing the finely balanced mirror, coils and mechanism, with two bubble-levels, on three adjustable screw feet, the cover with Board of Trade Electrical Standards Laboratory label No. 211 -- 19.5/8in. (49.8cm.) high
See Illustration