Analog Photogrammetric Flight scale 1:20,000, Analog Photogrammetric Flight scale 1:25,000. 1977 Campaign

Analog Photogrammetric Flight scale 1:20,000, Analog Photogrammetric Flight scale 1:25,000. Islands and dates: Gran Canaria: 01/01/1977-01/01/1977, Tenerife: 01/02/1977-01/02/1977, Gran Canaria: 01/01/1977-01/01/1977, Lanzarote: 01/01/1977-01/01/1977, Tenerife: 01/01/1977-01/02/1977. 1473 frames.