Author
France Armée. Groupe de canevas de tir
15
France Armée. Groupe des Canevas de Tir
12
France Armée. Service géographique
10
United States Army
8
Dépôt de la guerre (France)
7
France. ǂb Corps d'état-major
6
United States Army. Engineer Regiment, 29th
5
United States Army. Corps of Engineers. G.2.C
4
United States Army. Corps of Engineers. Regiment, 29th
4
United States Army. American Expeditionary Forces
2
Close, C. F
1
France. ǂb Armée. ǂb Groupe de canevas de tir
1
Great Britain Ordnance Survey
1
Istituto geografico militare (Italy)
1
Kümmel, Henry Barnard, 1867-1945
1
New Jersey Division of Geology and Waters
1
Ordnance Survey of Ireland
1
United States War Department. Military Intelligence Division
1
Vermessungs-Abteilung 14
1
Vermessungs-Abteilung 19
1