Bob, nadir

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Ingenium, 1996.0179.001
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OBJECT TYPE: N/A
DATE: 1935–1960
ARTIFACT NUMBER: 1996.0179.001

MANUFACTURER: Unknown
MODEL: Unknown
LOCATION: Unknown

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: BRASSCONSTRUCTION. STORED IN WOOD BOX, LINED WITH BLACK VELVET.

Dimensions

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

Length: 15.5 cm
Width: 10.3 cm
Height: 10.7 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: Unknown
Country: Unknown
State/Province: Unknown
City: Unknown

Context

Country: Canada
State/Province: Ontario
Period: Unknown
Canada: Unknown
Function: TO ALIGN PROJECTORS ON PLOTTING TABLES.
Technical: EXAMPLE OF SIMPLE INSTRUMENT USED TO ALIGN PHOTOGRAMMETRIC PROJECTORS ON PLOTTING TABLE (AS PER RC BROOKS). PRECISE POINT AT WHICH A VERTICAL LINE THROUGH THE PERSPECTIVE CENTRE OF THE CAMERA LENS PIERCES THE PLANE OF THE PHOTOGRAPH KNOWN AS PHOTOGRAPH NADIR OR NADIR POINT. PRESUMABLY THIS BOB ENSURES VERTICAL ALIGNMENT.
Area Notes: Unknown

Details

Markings: 'PSC MTS-2o' INCISED ON UPPER SURFACE OF SUPPORTING BASE. 'NADIR BOB' STENCILLED IN BLACK ON BOX TOP
Missing: UNKNOWN
Finish: PREDOMINANTLY BLACK. FACE OF PLATEN IS FLAT WHITE. BOX EXTERIOR STAINED & VARNISHED; BLACK VELVET LINING.
Decoration: N/A

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If you choose to share our information about this collection object, please cite:

Unknown Manufacturer, Bob, nadir, circa 1935–1960, Artifact no. 1996.0179, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/1996.0179.001/

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