I can send you a map of Magisterial districts, which could be a nice basemap for the projectVery nice. Were the smaller islands also divided into constituencies, or did they elect by bloc vote?
Apartheid-era South African elections are one of the longstanding "holy grail" projects of election mapping - as you say, constituency maps are elusive (it doesn't help that the current system is nationwide list PR, so the Electoral Commission doesn't have a natural incentive to store constituency maps, current or old, on its website), and I suspect you would need to physically go to Pretoria or Cape Town to have a real chance of ever finding them.
Cool to see one of my maps being posted. The version you is actually slightly wrong; two districts were won by a slightly larger margins and a levelling seat was moved from the SPD to the Greens. That has been fixed now.
No. Not in all states. Bavaria use separate elections in each government district, Berlin allows parties to allocate their list seats across the city buroughs, Baden-Wüttemburg uses a best-loser system in each government district, and Bremen has separate elections in Bremen and Bremerhaven.Just to confirm - in state elections in Germany, are the list seats always at large?