- FondoZA 0375 - THL Image Collection
- SerieP - P Collection
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- Unidad documental simpleP1231_13 - Excavation of a platform next to railway line.
- Unidad documental simpleP1231_14 - construction of cutting and embankment.
- Unidad documental simpleP1231_15 - Timber trestle bridge between two concrete abutments.
- Unidad documental simpleP1231_16 - Railway wagons under small bridge over cutting on new railway line.
- Unidad documental simpleP1231_16a - Culvert under high railway embankment.
- Unidad documental simpleP1231_18 - Long bridge over river under construction.
- Unidad documental simpleP1231_18a - Long bridge over river under construction.
- Unidad documental simpleP1231_19 - Long bridge over river under construction.
- Unidad documental simpleP1231_19a - Long bridge over river under construction.
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