Letecká fotografie

Άγνωστος δημιουργός

Archaeological Society at Athens

KLM Aerocarto nv

Eemland Archives

KLM Aerocarto nv

Eemland Archives

Geoplan

National Library of Denmark

Aero Express

National Library of Denmark

Thompson Homer A.

American School of Classical Studies at Athens

National Library of France

Models and Simulations for Architecture and Heritage

Rol agency. Photographic agency

National Library of France

Aggtelek National Park Directorate

Ghent University Library

Gooi and Vecht Historic

K.u.k. Kriegspressequartier, Lichtbildstelle - Wien

Austrian National Library

Geoplan

National Library of Denmark

Geoplan

National Library of Denmark

Geoplan

National Library of Denmark

Sylvest Jensen

National Library of Denmark

University of Bologna

Ghent University Library

Ghent University Library

Sommer, Giorgio

Slovak national gallery

Sylvest Jensen

National Library of Denmark

Gooi and Vecht Historic