Instruments intended for use at sea are usually made of brass to prevent corrosion from the action of salt. Similarly, this sea viewer. Solid and heavy copy, equipped with sun caps. The bag is missing a belt. The clasp shows wear. Very good optics.

Catalog: NM.1-15
Date: ca. 1900
LW: 12,5/14×11,5 cm
D: 5,5 cm
Signed: not signed
Origin: unknown
Condition: perfect