A "Biber" photographed in Sloten, near Amsterdam on 30-01-2004.
This sub is privatly owned for 50 years and stand in the owners garden. Altough some parts are missing, the sub is in good condition and is carefully painted. I parked my car beside for the comparison.
Of course I asked, But is not for sale because its a family piece.
After WW 2, dozens of abandoned Bibers and Seehunds were broken up for the iron. This one survived.

Emile van Essen ,Alkmaar