General Information

Serial #

N/A

Part Number

1

Total Parts

8

AKA

N/A

Patents

N/A

General Description

METAL WITH GLASS LENSES & SYNTHETIC MATERIAL IN TELESCOPE/ CASE: WOOD WITH METAL HARDWARE, LEATHER HANDLE & FELT PADDING

Dimensions

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

Length

26.5 cm

Width

9.0 cm

Height

14.2 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

Unknown

Period

1940'S & 1950'S

Canada

DEVELOPED BY THE DOMINION FOREST SERVICE OF THE DEPT. OF MINES & RESOURCES, IN OTTAWA. FURTHER DEVELOPMENT GAVE RISE TO THE SEELYSCOPE BUT NONE OF THE DEVICES WERE WIDELY USED OUTSIDE OR CONTINUED TO BE IN USE.

Function

USED TO 'SUPERIMPOSE' AN AERIAL PHOTO ON TO A MAP IN SUCH A MANNER THAT BOTH HAVE THE SAME HORIZONTAL SCALE. DETAILS FROM THE PHOTO CAN THEN BE TRACED ON THE MAP QUICKLY & EASILY. REQUIRES THE USE OF ONLY ONE EYE.

Technical

CREATION OF A SIMPLE, PORTABLE & INEXPENSIVE INSTRUMENT FOR PRACTICALAPPLICATIONS FOR USE IN THE FORESTRY INDUSTRY TO REPLACE THE HIGH PRECISION, RESEARCH INSTRUMENTS WHICH WERE BEING DEVELOPED IN OTHER COUNTRIES AT THE TIME.

Area Notes

Unknown

Details

Markings

SCRATCHED ON: 'M-1'/ SCRATCHED ON CASE: 'M-1'/ HANDWRITTEN ON CASE: 'M-1'/ DECAL IN CASE LID: 'DEPARTMENT OF FORESTRY/ SERIAL No. 00489'/ PAPER INSIDE LID: 'M-1/ MONOSCOPE/ Consisting of the following:-/ 1 centre assembly with telescope/ 2 large mirrors, 7 1/4" x 8 1/2"/ 2 slow-motion adjustable attachments/ 2 pr. of legs/ 1 wooden carrying case/ 2 bars'

Missing

2 BARS

Finish

BLACK CRINKLE FINISH/ CASE: PAINTED GLOSS BLACK WITH BLACK HANDLE & GREEN FELT

Decoration

N/A