Thumbnail Medium Original

Title: Telescopic Alidade

Description: A high standard alidade; this type of alidade permits direct viewing through the telescope. The level is mounted below the inverting telescope and the base (blade) is solid brass with circular voids. Manufactured by Keuffel & Esser, New York & New Jersey. Object ID: USGS-000165

Location: USA

Photographer: USGS Museum Staff , U.S. Geological Survey

Usage: This image is public domain/of free use unless otherwise stated. Please refer to the USGS Copyright section for how to credit the photo.

Source:

USGS Museum Collection

File Details:
Type: JPEG image - 887.99 KB
Dimensions: 1672 x 1024
Resolution: 72 dpi

Suggest an update to the information/tags?

Tags: Alidade Esser Keuffel Telescopic USGS-000165