value of this U boot related soldbuch?

[J. Csernus]

Hello!

I would let this Soldbuch go, but as Kriegsmarine is out of my field, I do not have a clue about it's value. I'm thinking putting this one to the e-stand, but I do not want overprice this one. Maybe we can find a better home for this item.
Thanks for your help!

[J. Csernus]

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[J. Csernus]

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[J. Csernus]

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[J. Csernus]

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[J. Csernus]

No opinons at all?
50-200 Eur or whatever?
I really haven't got any clue!
Thanks!