Analysis of information sources in references of the Wikipedia article "Command key" in English language version.
Chicago Control-Q prints propeller or clover symbol
'There are too many Apples on the screen! It's ridiculous! We're taking the Apple logo in vain! We've got to stop doing that!'
'Twenty years later, even in OS X, the Macintosh still has a little bit of a Swedish campground in it.'
'in 2007 Jobs' vision was finally realized and the Apple symbol was removed for good. In its place, on U.S. keyboards, the word Command joins the ⌘, while in Europe it's Cmd.'
Windows key acts as Apple/command.
'Twenty years later, even in OS X, the Macintosh still has a little bit of a Swedish campground in it.'