WINDHOEK exhibition place, privat postal stationery produced from postal stationery 5 penny imperial yacht with on face blue one-line cancel \"exhibition place\" and cancellation WINDHOEK German Southwest Africa * 21 / 6 02 *, on the back coloured additional imprint (with poem) of the 2. Agricultural exhibition in Windhoek at the 20. And 21. June 1902, to Cologne with appropriate arrival postmark, very rare flawless exception copy, expertized Wollbrandt, Impudent 4. Edition 2017 EUR 520.-