Bidspirit auction | 4 compasses case incl. 3

4 compasses case incl. 3 with nautical instruments - 4 compass cases approximately 1900-1935, 3 with nautical instruments, total 34 parts, including navigation, reduction and drawing compasses with steel tips etc., 2 cases incomplete, marked ”Etuis de Mathematique”, 1 mfr. ”Feinmessinstitut Joe Klawun Berlin-Charlottenburg”, 1 Swiss mfr. Aarau, covers partly heavily scuffed, missing parts; additionally nautical slide rule C. Plath, plastic, Ø 18.5cm