gesture question

German-Italian WW2 propaganda poster
"per arruolarsi nella legione SS Italiana onore fedelta coraggio"
translates to
"to enlist in Italian SS legion loyalty honor courage" (or so says google)

Frankly, I think it looks like a rude gesture. I hate to show my ignorance but does the gesture still mean screw you with a wayward thumb sticking out? If so is it appeal to jerks to join up?

(I think it is poorly drawn too. The hand/wrist seems too broad. This bothers me.)

I can has gravity?

jaw droppingly funny or incredibly mean

politically incorrect B-29

sigh - this is why I love the internet. I vaguely recall a reading a book that had a picture of a WW2 bomber with a clever name painted on the side, a quick search later and I'm looking at it.

Fu-Kemal

pic from here