General Information

Serial #

N/A

Part Number

1

Total Parts

1

AKA

stand microscope

Patents

N/A

General Description

metal, glass, synthetic & fabric components

Dimensions

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

Length

56.5 cm

Width

12.5 cm

Height

15.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

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 c. late 1960s- early 1990s.

Canada

Accessory used with Wild A8 Autograph [2004.1361], used in Canada's national mapping program c. 1960s-early 1990s, an example of one 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], the A8 was the most sophisticated plotter available before digital technology.

Function

Used to align the predetermined point from the diapositive to the mylar manuscript, during map plotting process.

Technical

Measuring device used in conjunction with manuscript. The plotter operator would use the device to measure how much he had to move the base to be centred on the model points. The manuscript was used prior to the advent of automated/digital mapping. It is a plastic base that has control points plotted at a specific scale. The points were plotted using the coordinatograph and were marked with a circle that had a pin prick in the centre. The point numbers were written next to the circle, these numbers corresponded to the photogrammetric points that were marked on the paper print and on the corresponding film positives. By shortening or lengthening the base (BX], the operator was able to fit on all the points that corresponded to the photogrammetric model that he was viewing. [Ref. 2]

Area Notes

Unknown

Details

Markings

Mfr's plate on arm reads "WILD/ HEERBRUGG/ Made in Switzerland".

Missing

Appears complete.

Finish

Dull green enamel wrinkle-textured finish on instrument arm & base; distal end of arm fitted with monocular viewer [clear glass optics housed within silver metal and black synthetic viewer]; underside of base lined with dark green felt; silver metal and black synthetic fittings, etc.

Decoration

N/A