Mariner 6, Mars, the full disc of the planet, July, 1969,

taken from a distance of 453.950 kilometers, 282,100 stature miles, showing in bright detail the region identified as the “W-cloud”,

vintage gelatin silver print, 19 x 23.5 cm. (7 1/2 x 9 1/4 in.), blue NASA caption numbered 69-H-1288, verso