Series Number Id: GSGS 2742; Sheet number: 57d NE; Edition number: 3a, Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC06; envelope_number: 147, Manuscript: pencil markings in Souastre - Fronquevillers - Bienvillers area [German harassing fire/barrages?]; dirty; average condition.
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