General Information

Serial #

868

Part Number

1

Total Parts

4

AKA

N/A

Patents

N/A

General Description

METAL & GLASS/ CASE: WOOD WITH METAL HARDWARE, LEATHER HANDLE, SYNTHETIC LINING & PADDING; AND FABRIC POUCH

Dimensions

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

Length

33.5 cm

Width

14.5 cm

Height

8.5 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Forestry

Category

Harvesting

Sub-Category

N/A

Manufacturer

AKA

RYKER

Country

United States of America

State/Province

California

City

Berkeley

Context

Country

North America

State/Province

Unknown

Period

Unknown

Canada

TYPE SAMPLE

Function

USED TO VIEW TWO PROPERLY ORIENTED PHOTOGRAPHS OR DIAGRAMS TO OBTAIN THE MENTAL IMPRESSION OF A THREE-DIMENSIONAL MODEL. IT ENABLES THE VIEWER TO HAVE A CLEARER IMAGE & BE ABLE TO ESTIMATE RELATIVE HEIGHTS OF OBJECTS.

Technical

USES MIRRORS IN ADDITION TO SIMPLE LENSES, SO THAT A RELATIVELY LARGE AREA OF EACH PAIR OF PHOTOGRAPHS IS VIEWED. THIS AVOIDS FREQUENT MOVING OF PHOTOS & FLIPPING UP SIDES OF PHOTOS REQUIRED WHEN USING A LENS STEREOSCOPE SINCE ALL STEREO OVERLAP CAN BE SEEN.

Area Notes

Unknown

Details

Markings

DECAL - 'DEPARTMENT OF FORESTRY/ SERIAL NO. 00197'/ SCRATCHED ON TOP: 'Air Survey Division'/ BASE: MFG'S PLATE: 'RYKER MODEL/ M-11 STEREOSCOPE/ SERIAL NO. 868/ MANUFACTURED BY/ HARRISON C. RYKER, INC., Berkeley, Calif.' [ON LID & INSIDE LID]

Missing

N/A

Finish

BLACK CRINKLE FINISH/ CASE: PAINTED GLOSS KHAKI BROWN WITH BLACK TRIM; INSIDE CHOCOLATE BROWN

Decoration

N/A