CONCRETE TOP
CT 1
CT 5
CT 9
CT 13
CT 2
CT 6
CT 10
CT 14
CT 3
CT 7
CT 11
CT 15
CT 4
CT 8
CT 12
CT16
IRON TOP
IT 1
IT 5
IT 9
IT 13
IT 2
IT 6
IT 10
IT 14
IT 3
IT 7
IT 11
IT 15
IT 4
IT 8
IT 12
IT 16