[OSGeo Africa] Updated 1970s/1980s Nambian topo online

[Grant Slater]

Hi All,

I now have a complete set of the 1970s - 1980s 1:50k topographic map
series of South West Africa / Namibia

https://namibia-topo.openstreetmap.org.za/

Huge thanks to Sibylle Engelhard for sharing the final missing sheets.

If you want to use it in QGIS the XYZ Connection URL is:
https://namibia-topo.openstreetmap.org.za/layer/na_sgswa_topo_50k/{z}/{x}/{y}.png

By popular demand I've also made the non map areas transparent to
allow easy overlay over other maps.

I am very interested in putting other historic African topographic map
series online. If anyone has any scanned sheets they are willing to
share with me I would be very grateful.

Kind regards,

Grant