1 map : col. ; 41 x 54 cm.
Denver Postoffice zones map / R.C. Lowe; [prepared for] Rockmont Envelope Co.
R.C. Lowe-Aug.1952. Corrected to 1-20-54." Key to zone names and numbers in lower left corner. Drawing of company building and advertisement at top. Index to streets keyed to zone, on verso.
Denver, Colo. : Rockmont Envelope Co., 1954.