Drain ... AMS 61 Horizontal (normal) ... 2 May 1932 ... 2012.31.0027 (Section Β' 10) ... Section Β' 10 ... Section Β' 10
Β'-1 60, 61 N 3453 N 3454 Β':1934.0501:3 Β':1934.0501:4 N 3455 N 3456 Section Β' 10 ... 1081-1118 A.D ... Β'