It appears that those are Landsat images. This page has an explanation of the annotation on the photos: http://globegis.blogspot.com/2007/07/history-of-remote-sensing-landsat-image.html.

“The first writing on the very left of the annotation row is the date of scene acquisition. This is followed by two groups of letters/numbers that define: a. the latitude-longitude coordinates of the principal point (format center), then b. latitude-longitude coordinates of scene nadir point (nadir refers to a line from the platform vertical to the ground). Next to the right is the identification of sensor (MSS) and Band (7). Then comes the elevation of the Sun (angle above horizon) and the Sun's location (azimuth defining Sun's position above the horizon geographically relative to true North), both at the time of scene acquisition. The next string of alphanumerics contains specialized information including spacecraft heading (189°), then (G), location of the receiving station (here, Goldstone in California), followed by I-N-D-IL for I = full size, N = normal processing, D = definitive accuracy for image center, 1L = 1 for linear mode for spacecraft data transmission (2 would be compressed mode), and L for low gain (H would be high gain) signal amplification level. NASA ERTS signifies that this product was made by NASA's ERTS (Landsat) satellite. The farthest right alphanumerics, E-1106-09183-7 specifies ERTS (E) followed by the mission number (1 for ERTS-1), plus 106 for the number of days after launch, -09183, the hour (09), minute (18), and second (7), all local time of observation (for scene center). The last, 01, is known as the regeneration number. Below the gray bar are three numbers that mark the longitudes (here E = east of Greenich, London) in degrees and minutes as these intersect the bottom of the image frame; these numbers appear at the top again, shifted left because of the orbital inclination.”