Phoenix Territorial Covers (Maricopa), study of approximately 90 covers and cards in two cover albums; starting with usages in 1876 with type 1 postmark (four recorded) and type 2 (6 recorded) in 1878, later comprehensive with most types represented including the 1880's single and double line boxed date stamps, type 9 postmark in violet and blue, scarce 1888 M.O.B. postmark (type 10, 4 recorded), later with corner card and registry usages, etc.; some duplication, condition varies with many nice strikes throughout, F.-V.F. overall. Estimate  $500 - 750. $0 (Image)