Kriegsmarine slide rule. "Kriegsmarine" stamped. With the orginal case. "Albert Nestler Kiel" maker marked and "D.R.P." marked. Furthermore the Kriegsmarine acceptance mark. Conditon: slide rule 2 and case 3.
Kriegsmarine hydrometer ("Aräometer"). Kriegsmarine acceptance mark. No damage to the glass. Length: 32.5 cm. With the orginal case. Condition 1-.
Kriegsmarine hydrometer ("Aräometer"). Kriegsmarine acceptance mark. No damage to the glass. Length: 29 cm. With the orginal case. Condition 1-.
