While he has compiled a pretty nice website, that webmaster of LuftArchiv.de obviously made an error, which has propagated through the interwebs (or probably it was someone else and he just adopted it...).
There is no word like 'Loften' in German - and, additionally, klick on my link above. The original box should be proof enough, I think!
(whoever is tempted to use the word "photoshopped" now, be ready to face my wrath!
)