Mosaic hall (Room A2) ... north 4329 Horizontal (normal) ... 23 Jul 1968 ... Mosaic hall (Room A2).
Mosaic hall (Room A2) ... AMS north 4329 Horizontal (normal) ... 23 Jul 1968 ... Mosaic hall (Room A2).
Room A2; bedrock from the northwest ... AMS Horizontal (normal) ... Room A2; bedrock from the northwest.
Cement floor, Room A2, from the east ... AMS Horizontal (normal) ... Cement floor, Room A2, from the east.