Keywords: Olieslagers in Nederland 02.jpg nl Jan Olieslagers mogelijk in Leeuwarden en Jan Olieslagers possibly in Leeuwarden the Netherlands 2016-08-13 scan own Ad Meskens PD-old other versions cc-by-sa-4 0 Jan Olieslagers Leeuwarden 1910s postcards Blériot aircraft on postcards Blériot XI Aviation in the 1910s |