Hygrometer/thermometer

Hygrometer/thermometer

For ascertaining the density of salt water, enabling the accurate trimming of a submarine.↵Note the KM property marks and the orginal tranist tube.↵More pics in gallery/Instruments
Diesel Indicator U170

Diesel Indicator U170

Nice wooden box with Nr markings and eagle.↵Note: Rudolf Muhlbauer was also on duty at this U170 and there is also a book written about U170 se (attched photo)↵More info i the gallery/ Instruments
New Book about Suppliers

New Book about Suppliers

A very intressting and nice book with many photos and details from these Milkcows who played an important roll in supplying other boats. A intressting CD follow with the book.↵A “must have” for us intressted in the subject