GRÖFAZ = Größter Feldherr Aller Zeiten
what means like the prime commander of all times
but it was s a joke, its a very semantic joke. the last part of the word ...FAZ sounds in german also like "Fatzke" what is kind of slang and means tobe a squirt or someone who feels to be to important. and i think mitch is right, that was ONLY to tell to your best friends, not for the publlic, in this times....
and why we are not allowed to display symbols to the public from the WW-II Eara in germany ? - thats easy: we hade too much of them.... but to me it is even more strange that most of the country around germany, does not have any problem with models, toys and such stuff from this timeframe....