155 [no page number], Trench X, 6/7/1972, Lot 1972 221 [no page number], Trench X, 6/7/1972, C 1972 193 [no page number], Trench X, 6/7/1972, A 1972 17 [no page number], Trench X, 6/7/1972, C 1972 239 ... 6/7/1972