General Information

Serial #

7315

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

Brass

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length

N/A

Width

7.6 cm

Height

4.4 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Exploration and Survey

Category

Measurement-angles

Sub-Category

N/A

Manufacturer

AKA

HUGHES OWENS

Country

Canada

State/Province

Québec

City

Montréal

Context

Country

Unknown

State/Province

Unknown

Period

Unknown

Canada

Manufactured by Hughes-Owens Ltd., a mathematical instrument company set up in Montreal, Quebec. Received from Energy, Mines and Resources, the federal government department responsible for surveys such as geographical, topographical, etc. The department started as Geological Survey Canada in 1842 with the main goal of preparing an inventory and assessment of the geological environment in Canada.

Function

Pocket sextant; used to measure vertical and/or horizontal angles between two objects. Pocket sextants were normally used for surveying, but they could also be used for navigation. They would come with or without a telescope.

Technical

Arc measures from 0? to 140?. Pocket sextants were designed to house the optical components of the sextant inside a small 3 inch brass cylinder. Popular as both a civilian land and military survey instrument.

Area Notes

Unknown

Details

Markings

S/N '7315'/ 'hydrographic survey no. 16'. Text on bottom reads: 'The Hughes Owens Co. Ltd./Montreal/No. 7315/Made in England/Hydrographic Survey No. 16.'

Missing

rom CA of 08/18/1995 by Tony Missio: Undetermined

Finish

0 TO 140 degrees/ round brass case/ cover pulls off/ no visible damage

Decoration

N/A