Some streets and buildings are named. Military grid. Oriented with north toward the upper left. "Copied from I.S.I.S. report, 1:10,000, Bilbao, CB 1811, no. 6, 1942." "Grid and projection approximate." "Iberian Peninsula zone grid (blue); Projection: Lambert conical Orthomorphic; Spheroid: Hayford; Origin 40°N and 3°41'14.55"W (Madrid meridian); False co-ordinates: 600,000 meters east of origin, 530,000 meters North; Scale factor: 1,000,000." "3-43." Alternate title: Bilbao city plan. Grid and projection approximate. Copied from I.S.I.S. Report, 1:10,000, Bilbao CB 1811 no. 6, 1942. AMS 1.
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