Associated Factory Mutual Fire Insurance Companies. Crocker, Burbank & Company Ass'n. "Mill No. 9," Fitchburg, Mass. Boston, Mass.: Associated Factory Mutual Fire Insurance Companies, 1947. Surveyed February 3, 1947. Surveyed by C. D. Illyes; drawn by J. R. Condon; traced by B. C. Kidger. 1 sheet. Includes plan of buildings (with dimensions), elevation views of individual buildings (with functions of building floors and rooms), and surroundings. Also includes brief description of property, power, stock and product, and existing water sources and fire protection resources. Lacks isometric view of buildings. Pencilled below index number: "can 2-52." Serial number 33603, partly replaces 26567. Index number 9535. Scale 1:600, 1 in. = 50 ft. 53 x 67.5 cm. (OCLC)