DELTA AIR LINES Vintage Plane Photographs Original 8x10 Lot of 3 Convair Douglas For Sale

Great lot of old official Delta Air Lines photographs. There are three photographs in this lot. They are:
Delta Convair 440 prop plane in flight. On the back of this picture there is a stamp stating the photo was approved by Delta
Delta Douglas DC-6 prop plane on the ground. Along with the Delta logo is one for Chicago and Southern (C&S) Air Lines. In the background of this photo there are a large number of US military prop planes
Delta Boeing 747 in flight. This photo has some discoloration in the cloud area, giving some parts of the clouds a gold tint
Would look great framed together. Each photograph is 8x10 inches.