General Information

Serial #

19196

Part Number

1

Total Parts

3

AKA

N/A

Patents

N/A

General Description

Brass body; glass lenses

Dimensions

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

Length

31.3 cm

Width

10.4 cm

Height

16.9 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Exploration and Survey

Category

Measurement-distance

Sub-Category

N/A

Manufacturer

AKA

Consolidated

Country

Unknown

State/Province

Unknown

City

Unknown

Context

Country

Unknown

State/Province

Unknown

Period

Unknown

Canada

Thomas Pocklington Ltd. made and repaired surveying instruments in Toronto between 1925 and 1992. It was one of the few Canadian firms producing precision instruments before WWII. Thomas (b. 1882), the founder, was trained as an instrument maker in the U.K. He moved to Toronto in the early 20th century and worked for Consolidated Optical Co. until he started his own business in 1925. From that time until 1940 the firm occupied a location near what is now the Eaton centre; from 1940 to 1953 the firm occupied 30 Bridgman Ave (presently Tarragon Theatre); from 1953 to 1992 they occupied 208 Weston Rd. The CSTM has the Brightly circular dividing engine (CSTM ARTIFACT # 1992.1776) purchased by the firm in 1940. Thomas was succeeded by his son William, who was succeeded by his two sons John and Ronald. Very little is known about the small precision industry in Toronto in the late 19th and early 20th century. Our growing collection of archival material and artifacts related to Pocklington, one of the leaders in that community, provides a more complete picture of this history. (From the acquisition proposal)

Function

An instrument for determining differences in elevation, and can be used to obtain comparative elevations of two points or in defining the profile of a path.

Technical

Instruments like this one document important phases in the history of this firm. The Wye level represents Thomas's work at Consolidated before he went into business for himself.

Area Notes

Unknown

Details

Markings

On one side of the arm connected to the scope is engraved the number "19196"/ on the other side of the arm is engraved "'NEW CONSOL'" and "MANUFACTURED BY/ CONSOLIDATED OPTICAL Co./ TORONTO"/ below the arm is a large ring with measurements all around it.

Missing

Appears complete.

Finish

Brass body with some black finish

Decoration

N/A