Thanks for that information, Christian. Based on your lead, I also found an article in French here: (see page 6 of the source)
http://treasury.fgov.be/intermunt/f...o/MI45FR.pdfBased on my rusty French, the designer (Claude Charlier) was a Belgian who settled in the Congo after doing his military service there. He was a professor and director of a fine arts college in Kinshasha at the time of the secession. Apparently the new Minister of Finance asked him to design coins for the new county, which was something he had not done before.
As mentioned by Christian, the coins were struck in Birmingham and put into circulation in 1961.
Charlier also designed Katanga's stamps, but for that assignment he was required to win a competition.