Holder, drawing point

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OBJECT TYPE: PHOTOGRAMMETRIC PLOTTER
DATE: 1968–1970
ARTIFACT NUMBER: 2004.1361.057

MANUFACTURER: Wild Heerbrugg
MODEL: Unknown
LOCATION: Switzerland

More Information

General Information

Serial #: N/A
Part Number: 57
Total Parts: 65
AKA: drawing lead holder
Patents: N/A
General Description: predominantly silver metal; black lead

Dimensions

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

Length: N/A
Width: N/A
Height: 15.0 cm
Thickness: N/A
Weight: N/A
Diameter: 3.7 cm
Volume: N/A

Lexicon

Group: Exploration and Survey
Category: Photogrammetry
Sub-Category: N/A

Manufacturer

AKA: Wild
Country: Switzerland
State/Province: Unknown
City: Unknown

Context

Country: Canada
State/Province: Ontario
Period: presumably used c. 1970s- 1990s.
Canada: Accessory for plotter used in Canada's national mapping program c. 1960s-early 1990s, and is an example of the last analogue plotting devices used by the Topographic Service of Canada. With the exception of the Wild A10 [few of which were used in Canada], this machine was the most sophisticated plotter available before digital technology. This machine was converted c. 1995-96 to digitize the motions (X,Y & Z) with the addition of encoders and a control pad which interfaced to a computer. The Kern encoders and control module were installed by Terra Surveys of Ottawa when they rented this machine for the MOM project, completing the large scale mapping of Riyadh, Saudi Arabia. The A8 was on loan to Terra for the duration of the project's digital compilation stage. [Ref. 1]
Function: To correctly support and position drawing leads, scribers, etc. for use on plotting table.
Technical: One of 4 drawing point holders supplied as standard accessory for Wild A8 Autograph. The holder with lead (or scribing point, etc.) is fitted to drawing arm of plotting table: when in use, the area around the drawing point is illuminated. [Ref. 3, pp.20-1.] This holder is fitted with a black drawing lead.
Area Notes: Unknown

Details

Markings: None evident.
Missing: Appears complete.
Finish: Bright and brushed silver metal holder and point; grip portion of central shaft is cross-hatched; sharply pointed lead.
Decoration: N/A

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Wild Heerbrugg, Holder, drawing point, circa 1968–1970, Artifact no. 2004.1361, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/2004.1361.057/

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