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| 148 [no page number], 26/4/1969, Coin 1969 84 ... 26/4/1969 |
| 150 [no page number], Manhole # 16 Cross section along axis of tunnel, Drawing, Manhole # 16 Cross section along axis of tunnel Pg. 150, Manhole # 16 NW tunnel Cross section through tunnel and adjacent ... |
| 152 [no page number], Manhole # 16 Cross section of tunnel, Drawing, Manhole # 16 Cross section of tunnel Pg. 152, Manhole # 18, 28/4/1969, NB435 B13, Manhole # 18, Lot 6293 Pg. 152, 28/4/1969, NB435 ... 28/4/1969 |
| 154 [no page number], 28/4/1969, Lot 6293 ... 28/4/1969 |
| 160 [no page number], 29/4/1969, Coin 1969 107 [no page number], 29/4/1969, Coin 1969 108 Pg. 160, Manhole # 20, 30/4/1969, NB435 B13, Manhole # 20, Coin 1969 126 ... 29/4/1969, 30/4/1969 |
| 162 [no page number], 30/4/1969, Coin 1969 127 [no page number], 30/4/1969, Coin 1969 128 Pg. 162, 30/4/1969, NB435 B22, Coin 1969 129 ... 30/4/1969 |
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