Ertel-Werke 637 Double Circle Theodolite with Compass and Wooden Case

Ertel-Werke 637 Double Circle Theodolite with Compass and Wooden Case

• Engraved on unit: ERTEL-WERKE A.G. MÜNCHEN 32697

From paper inside storage box:

• ERTEL-MERKE A.G. MUNCHEN
• Barthstrasse 8.
• Type: Normal Rep Theodolis I
• Nr: 32697

Fernrogr m Innen-Fokusier

• FreieOffnung d. Objektivs = 23 %
• Brennweite des Objektives = 190 %
• VergroBerung = 18 lach
• feste Distanzfaden K = 120 %

Horizontal-kreis

• Limbus-Durchmesser = 120 %
• Einteilung = 1/3°
• Nonienangabe = 30"

Vertikal-kreis

• Limbus-Durchmesser = 100 %
• Einteilung = 1/3°
• Nonienangabe = 30"

Libellen-Angabe

• der Horiz.-Kreis-Alhidade = 40"
• des Fernrohrtragers = 40"
• dder Vertujalkreis-Alhidade = 25"
• Reversionslib. d. Fernrohrs = 20"

• Nadellange der Bussole =

Condition: Used

This vintage double circle theodolite has been inspected and appears to be in good condition. It was pulled from a working environment where it was in use and functional. Please view our photo set and contact us if you have any questions.