பயனர்:Hansmuller
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- English user page
- Dutch user page
- Former Boardmember Dutch chapter Wikimedia Nederland 2013-2014, i resigned in november 2013 to avoid conflict of interest with my new work as:
- Wikipedian in special residence with eleven Dutch academic libraries 2013-2015, project page
- Wikipedian in residence at Naturalis Biodiversity Center, May - November 2015, project page. Comments are welcome on w:species:User_talk:Hansmuller
- Guinea-Bissau and Senegal 1973-1974 (Coutinho Collection), project to upload 700+ images for the African Studies Centre, Leiden, January - May 2016
- University Library Leiden / KITLV project to upload 3000+ Dutch colonial photographs and artworks, February - May 2016
- project to upload images of Africa donated by researchers at the African Studies Centre, Leiden, September - December 2017
* Continued project to upload thousands of Photos of Africa from the African Studies Centre Leiden, September 2019 - present
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School of liberation movement PAIGC, Guinea-Bissau 1974 -
Cuban nurse checking blood pressure in liberated parts of Guinea-Bissau, 1974 -
Learning how to shoot, liberation movement PAIGC, Ziguinchor, Senegal 1973 -
Twelve postal stamps from Zanzibar, 1892 - 1894
