Collation edition : Italy 1:100,000.
Allied Forces Headquarters, G-2.
Great Britain.War Office.General Staff.Geographical Section.
[S.l.] : 2 Air Survey Liaison Section,
1944.
Overprinted on: Italy 1:100,000, Series GSGS 4164 Sheets 51, 65, 77 & 77A
Coverage limited to Venice area and Istria. Overprints all identified as "First collation edition". Details differ; all shows coastal features, bridges (listed on reverse) and ladder grid. Some sheets have details on other landscape features. Originally classified "Secret".