OBS/6/9/2/1/A
Picture Library subject files for subjects beginning with letter A
c1960-c2000
OBS/6/9/2/1/C1
Picture Library subject files for subjects beginning with letter C (part 1)
OBS/6/9/2/1/D
Picture Library subject files for subjects beginning with letter D
OBS/6/9/2/1/E
Picture Library subject files for subjects beginning with letter E
OBS/6/9/2/1/H
Picture Library subject files for subjects beginning with letter H