Phantom Load Tester 1916. Material: wood, metal, rubber, textile, plastic. Size: 7 1/2" H. x 13" W. x 7 3/4" D. Description: wooden box; lid at top; silver metal latch on front; leather handle on front; two metal vents on each side of box; black rubber feet on bottom; metal plate on front: "Phantom Load, Type B, Serial No. 10770, Primary Volts 110-220, Secondary Amps 100, Cycles 60, for intermittent use only, do not leave in circuit except when making necessary readings, The States Co., Hartford, Conn."; metal plate inside lid: "Primary Link Arrangement, 110 V., 220 V."; two black plastic knobs on left side labeled "Primary"; two silver metal knobs on right side labeled: "Instrument"; four silver metal connectors top center; ten metal levers with black plastic tips; levers numbered .25, .5, 1, 2, 2, 5, 10, 20, 20, 50."