Related to objects 451 and 452Resistance decade box constructed with a rectangular wooden body and black plastic top displaying five large dials and fifteen smaller dials. Unit measurements are inscribed beneath each dial.Left to right on top panel surrounding dials: 'INT / OHMS AT 20 C MANGANIN / PURCHASED BY UNIVERSITIES COMMISSION / J. L. WILLIAM MELBOURNE' Adhered label at center of top, between dials: 'Part 2 W B S' Long front side has an metal panel with paper label and PVC covering demonstrating setup that has 'SERIAL No 416' engraved along upper edge. j. l. william, scientific instruments, resistance decade box, electrical instruments, decade box