Keywords: Mittelholzer Hinwil.jpg Hinwil ZH 1928 Aufnahme von Walter Mittelholzer 1894 - 1937 Die Schweiz von damals Flugaufnahmen von Walter Mittelholzer Weltbild-Verlag Olten 2005 1928 upload April 2009 Walter Mittelholzer upload by Adrian Michael PD-old Swiss copyright on Mittelholzer's work's expired at the end of 1987 since Switzerland had a copyright term of 50 years p m a until 1993 and the extension to 70 years p m a made in 1993 did not restore already expired copyrights Walter Mittelholzer Hinwil Aerial photographs of the canton of Zürich Historical black and white photographs of the canton of Zürich |