ZA-69834
Buildings on Kaiserstrasse, Windhoek
This card is really cool. First, it is a Maxicard (notice the stamp featuring an identical or related image to that of the main part of the postcard.) Secondly, it was originally made in 1985 (as on can tell from the marking of June 6, 1985 on the front.
Finally, while this card was mailed from South Africa and carries a South Africa Postcrossing number (ZA-69834), it comes from the former country/area of South Africa known as South-West Africa (then part of the nation of South Africa), currently known as Namibia.
The user writes in Afrikaans "Ek hoop jy genniet jou somer." or "I hope you enjoy your summer"...a very fitting message for a card sent in early March 2015.