Renseignements généraux

Nº de série

S/O

Nº de partie

1

Nombre total de parties

1

Ou

stand microscope

Brevets

S/O

Description générale

metal, glass, synthetic & fabric components

Dimensions

Remarque : Cette information reflète la taille générale pour l’entreposage et ne représente pas nécessairement les véritables dimensions de l’objet.

Longueur

56,5 cm

Largeur

12,5 cm

Hauteur

15,0 cm

Épaisseur

S/O

Poids

S/O

Diamètre

S/O

Volume

S/O

Lexique

Groupe

Exploration et levé

Catégorie

Photogrammétrie

Sous-catégorie

S/O

Fabricant

Ou

Wild

Pays

Switzerland

État/province

Inconnu

Ville

Inconnu

Contexte

Pays

Canada

État/province

Ontario

Période

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.

Fonction

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

Technique

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]

Notes sur la région

Inconnu

Détails

Marques

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

Manque

Appears complete.

Fini

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.

Décoration

S/O