Re:The letter Q was illegal in Turkey from 1928 until last m...
by ozgung on Monday October 21, 2013 @09:39AM
(#6585396)
There is even a W Hotel at the hearth of Istanbul: http://www.wistanbul.com.tr/en/gallery/exterior
If you wanted a local company, yes, you were only allowed to use Turkish letters in the official name. They didn't actually care what you actually wrote on your signs though.
Official names being Turkish is important because otherwise officials would have needed to be capable of working with all characters in the universe.