Looks like there are really two version out there. Which is the correct one, I guess an old picture might settle the dispute, I haven't been able to find it. I hope someone can help.
One version is something like in these pictures:
http://www.warbirdsresourcegroup.org...mblem-jg52.jpg
http://www.battle-of-britain.com/BoB...es/JG/JG52.jpg
In some others, it looks like the three lines on either side of the knife are joined to form a wing like (if you look closely) in this one:
http://www.christian-schmidt-fachbuc...%20jg%2052.jpg
Thanks.