Austro-Hungarian U-boat badge

[amiklic1]

Hello,

this is my small contribution to the theme, with few photos and facts, but also posted as a review of the badge to be judged by more experienced colleagues. Thanks for contribution.

Firstly I will show my K.U.K. U-boat badge, with as many details as I could figure out are important.
To note that reverse of the badge is cleaned, and the obverse is just lightly cleaned (was more black).

First the measurements:

[amiklic1]

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[amiklic1]

Now I will continue with all details.
First full obverse and reverse:

[amiklic1]

continuing with more details:

[amiklic1]

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[amiklic1]

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[amiklic1]

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[amiklic1]

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[amiklic1]

no stamp behind the backplate visible

[amiklic1]

Ok, those were the photos of my badge. As those were produced during the war and also postwar (I'm not sure but I think that number of privately purchased pieces can also be considered original, if they are being made during the Austro-Hungarian empire), I tried to find as much as possible existing "originals" (at least the ones which are presented like that, as I cannot be sure, but also which look OK to me).
Here are two from eMedals:

[amiklic1]

and another one which looks just as black as mine was (unfortunately, mine was cleaned but not by me ). Note also that this one from eMedals has a number on it

[amiklic1]

and here are some referenced as originals (issued and private purchases, I think) I got from Internet before (sorry, don't remember the source):

[amiklic1]

and here is one photo from another thread at http://dev.wehrmacht-awards.com/foru...=128450&page=2 , post #55

[streptile]

Very nicely designed badge. Can't say much about it but I like it.

How did the fastening mechanism work?

[amiklic1]

Thanks!

Fastening works like a clip, in fact.