- FondoZA 0375 - THL Image Collection
- SerieM - M Collection
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- Unidad documental simpleM8615 - January 1971. Thermal welding of rail lengths.
- Unidad documental simpleM8615_01 - January 1971. Thermal welding of rail lengths.
- Unidad documental simpleM8615_02 - January 1971. Thermal welding of rail lengths.
- Unidad documental simpleM8615_03 - January 1971. Thermal welding of rail lengths.
- Unidad documental simpleM8615_04 - January 1971. Thermal welding of rail lengths.
- Unidad documental simpleM8615_05 - January 1971. Thermal welding of rail lengths.
- Unidad documental simpleM8658 - March 1971. Conference of overseas SAA managers.
- Unidad documental simpleM8658_01 - March 1971. Conference of overseas SAA managers.
- Unidad documental simpleM8658_02 - March 1971. Conference of overseas SAA managers.
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