Series Number Id: GSGS 2742; Sheet number: 57c SW; Edition number: 4a, Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC11; envelope_number: 291, Manuscript: RAMC markings in Guillemont - Gueudecourt - Le Transloy - Sailly Saillisel - Combles area: casaulty evacuation routes - RAPs, BPs, ADS etc; Battle of the Somme; manuscript on reverse: 5 Irish? F[ield] Ambulance.
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