THIS IS AN ORIGINAL B/W MAGAZINE AD FROM THE LATE WORLD AIRWAYS OF OAKLAND AIRPORT.IT IS IN EXCELLENT CONDITION,MEASURING 8" X 11",DATED 1970.....12 AIRLINES USE WORLD AIR CENTER FOR MAINTENANCE SERVICE..AD SHOWS WORLDS LARGEST CHARTER AIRLINE...OAKLAND AIR CENTER.... WORLD BOEING 707'S IN OLD HANGAR ON THE NORTH FIELD LAST USED BY ALASKA AIRLINES......POSTAGE ON 1 AD IS THE SAME PRICE AS FOR 100....PLEASE VISIT MY E-BAY STORE....NOSTALGIA AIRWAYS....