Magica de Spell / Magica De Spell

[Daniel van Eijmeren]

Someone pointed out to me that my link to the March 6, 1963 letter 
at Ebay, gives an answer to how Barks himself spelled Magica's name.

In the letter, and on the foof bomb drawing, Barks spells 
"Magica de Spell".

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3239603678&category=1530

I'm curious if Barks was consistent in spelling Magica's name, or did he 
change that through the years?

--- Daniël