PHOTO: The IK Foundation / Lars Hansen Archive in collaboration with The Thora Ohlsson Foundation and The Erna & Victor Hasselblad Foundation. Part of the interdisciplinary work within Project The Baltic Sea | Hanöbukten Extinct Landscape (1980 - 1992). The pilot on this flight was Gudmund Ahlberg. | http://www.iBirdseye.org | NOTE: This picture is not published or searchable in the printed catalogue (iBOOK).
![Vitaby [Grevlunda] motte [Borgvallen]. Experimentally photographed with yellow filter (20 November, 1988). | LH.0274](https://photos.smugmug.com/photos/i-Dw3QNHz/0/L/i-Dw3QNHz-L.jpg)