Ertel-Werke

Ertel-Werke München 637 Double Circle Repetition Theodolite Compass Wooden Case

Ertel-Werke

SKU:

52765

Availability:

Usually ships within 1-2 business days.

Weight:

30.00 LBS

Brand:

Ertel-Werke

Model:

637

MPN:

32697

Type:

Double Circle Repetition Theodolite

SKU:

52765

Instrument Type:

Normal-Repetitions-Theodolith I

Serial Number (Internal):

32697

Horizontal Circle Diameter:

120 mm

Horizontal Circle Division:

1/3°

Horizontal Circle Vernier Reading:

30 arcseconds

Vertical Circle Diameter:

100 mm

Vertical Circle Division:

1/3°

Vertical Circle Vernier Reading:

30 arcseconds

Telescope Magnification:

18x

Objective Aperture:

23 mm

Objective Focal Length:

190 mm

Stadia Constant (K):

120

Focusing Type:

Internal focusing (Innen-Fokusier)

Level Sensitivity – Horizontal Alidade:

40 arcseconds per division

Level Sensitivity – Telescope Carrier:

40 arcseconds per division

Level Sensitivity – Vertical Circle Alidade:

25 arcseconds per division

Reversion Level – Telescope:

20 arcseconds per division

Accessories Included:

Compass, plumb bob, adjustment tools, case keys, level vial

Case Type:

Original dovetailed wooden carrying case

Country/Region of Manufacture:

Germany

Manufacturer Location:

Barthstrasse 8, München (Munich), Germany

Era / Period:

Pre-WWII, early-to-mid 20th century

Condition:

Used – Pulled from Working Environment

Seller Notes:

Includes compass, plumb bob, tools, keys, and original wooden case with internal label

Condition Notes:

Ertel-Werke 637 Double Circle Theodolite inspected and in good condition. Pulled from working environment. Includes compass, striding level, plumb bob, tools, keys, and original wooden case with spec label.

California Prop 65 Warning:

WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov