year. 1941–1948 In 1941 both straight six- and straight eight-engines were offered on each series so to differentiate between the two the second digit was used to denote the number of cylinders, so the Dynamic 70 was replaced with the Dynamic 76 and 78. In 1942 sales literature started referring to the Series 70 as the Dynamic Cruiser 76 and 78. Production was delayed from 1942 until 1945 due to manufacturing efforts being devoted to World War II defense production. To celebrate the company's 44th anniversary at the time, all Oldsmobiles were installed with a small badge on the grille with "B44" attached. This was not a model designation. In 1946 the Dynamic Cruiser Series 70 was Oldsmobile's mid-priced model, and offered both a 2-door Club Sedan and 4-door Sedan, and the second number in the series designation continued to identify if it had a straight six- or straight eight-cylinder flat-head engine. Some of the optional equipment included a choice of a 6-tube or DeLuxe 7-tube radio, electric clock, plastic steering wheel, rear window wiper for both sedans, and auxiliary driving lights. Prices listed for the Dynamic 70 DeLuxe 4-door Sedan were US$1,678 ($ in dollars ) and 5,118 were assembled while the Dynamic 70 4-door Sedan was much more popular, selling 25,528 with a listed price of US$1,568 ($ in dollars ). Electrical equipment was modest as the cars of this time only used a 6-volt system. The standard equipment offered Bedford cord or broadcloth upholstery, front seat retractable center armrests, rubber floor mats, painted woodgrained instrument panel, dual sun visors, dual electric windshield wipers, and an automatic choke for the carburetor for easier starts for a cold engine. Buyers who chose the DeLuxe trim package were given carpeted inserts in the rubber floor mats, a deluxe instrument with full gauges, a retractable center armrest for the rear seat, the E-Z-I anti-glare rear view mirror and an electric clock. Curiously, the Standard Series 70 had 16" wheels while the DeLuxe had 15" wheels as standard equipment. 1947 was Oldsmobile's fiftieth anniversary and other than some new two-tone exterior paint options, the standard and optional equipment and features remained carryover from previous years. A heater and windshield defroster was added to the options list for US$32 ($ in dollars ). New branch assembly locations were added at Atlanta and Wilmington. Due to the American public taking the opportunity to purchase