F4 north , looking east ... AMS Horizontal (normal) ... F4 north , looking east.
Room F4 looking northeast ... AMS Horizontal (normal) ... Room F4 looking northeast.
Room F4 looking south ... AMS Horizontal (normal) ... Room F4 looking south.
Heavy limestone wall at east. F4 and C11 ... AMS Horizontal (normal) ... Heavy limestone wall at east. F4 and C11.
