THIS IS AN ORIGINAL B/W MAGAZINE AD FROM 1940 FROM UNITED AIR LINES.IT IS IN EXCELLENT CONDITION,MEASURING 4" X 10.5".....KEEPING AHEAD..DC-3 MAINLINERS BETWEEN SAN FRANCISCO  AND LOS ANGELES 12 FLIGHTS DAILY AND 7 BETWEEN SEATTLE AND PORTLAND..POSTAGE ON 1 AD IS THE SAME PRICE AS FOR 100....PLEASE VISIT MY E-BAY STORE....NOSTALGIA AIRWAYS......35% MORE AIR MILES AND 47 % MORE SEAT MILES