Fig. 25
consisting of drawing of Sawyer Man lamp cut from catalogue, and trimmed to contour of drawing
Fig. 26
a drawing showing action of key in Sawyer Man lamp, cut to contour
Fig. 27
a drawing of the Thomson Rice Individual distributor cut from cataloug and pasted in.
Fig. 28
a drawing cut from pamphlet showing “Method of using Thomson Rice Individual distributor”
Fig. 29
a drawing cut from pamphlet showing “Prof. Thomsons incandescent lamp—series incandescent lamp”