This is a new old stock pair of Anco brand wiper arms that are part number SH-175.  These are the shiny type finish mainly used before 1966 but will fit later cars.  These fit the following according to my Anco catalogue as a replacement; Chrysler 1949-1950 all (except convertible, town and country and club coupe); Chrysler all 1951-1956 all; DeSoto 1949-1950 (except convertible; DeSoto 1951-1956; Dodge 1949-1952 Convertible, Suburban, Club coupe, Wayfarer with electric wipers Dodge 1953-1956; Hudson 1955-1957; 1956 Imperial; Lancer 1961-1962; 1955 Nash all (except Metropolitan); Plymouth 1951-1956 all; Rambler 1958 all; and 1960-1962 Valiant. This is the type with the screw head attachment.  These are adjustable in length from 10 3/4" to 14 1/2" and angle is adjustable also.   These are in excellent condition with nice shiny chrome.