View of the Frontier Drive In restaurant in Missoula, Montana. Cars and trucks are parked in front of building. Printed on front: "Frontier Drive In, 24 hour service. Missoula, Montana." Printed on back: "Frontier Drive In. Montana's finest drive in restaurant. Tourists breakfasts, luncheons and dinners as advertised nationally in 'Fountain Service Magazine,' Missoula, Montana. Wright Advertising Specialty Co., Spokane, Wash."
