- Archief09.1 - Dr. Charles Borden DhRt-4 Project Fonds
- Reeks3 - Photographs
- Bestanddeel23 - 1973 slides
- 125 more...
- Stuk126 - Profile: s-4 (e 4-6) unit: s 2-4 e 4-6 south wall
- Stuk127 - Profile: e-6 (s 2-4) unit: s 2-4 e 4-6 east wall
- Stuk128 - General - crew (trench e 4-6 in foreground)
- Stuk129 - Profile: e-4 (s 2-4) unit: s 2-4 e 4-6 west wall
- Stuk130 - General - site (from south)
- Stuk131 - Profile: e-16 (e 2-4) unit: s 2-4 e 16-18 west wall
- Stuk132 - Profile: s-4 (e 16-18) unit: s 2-4 e 16-18 south wall
- Stuk133 - Profile: e-18 (s 2-4) unit: s 2-4 e 16-18 east wall
- Stuk134 - Profile: s-2 (e 16-18) unit: s 2-4 e 16-18 north wall
- 26 more...
