Willy,

you maybe perfectly right. From an artistic point of view these could easily be a pair of Dolphins. On the other hand to show two sea monsters would makes more sense imho, its more dramatic instead of Flipper. ;-) But that's just me.

Gentlemen, you've got me. Dagger and photo are belonging together, not the Cross and sub badge. This sub badge was published in our book, of course I'll add the photos, but it was added here to underline the fact that this NCO is wearing an Imperial badge in 1942.

Best;
Hermann