General Information

Serial #

N/A

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

WOOD. METAL NAIL EMBEDDED IN TOP

Dimensions

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

Length

31.0 cm

Width

7.0 cm

Height

6.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Exploration and Survey

Category

Survey equipment

Sub-Category

N/A

Manufacturer

AKA

Unknown

Country

Unknown

State/Province

Unknown

City

Unknown

Context

Country

Canada

State/Province

Yukon

Period

1905-1959

Canada

PLACED ON SOUTHERLY BOUNDARY OF LOT 15 GROUP 6 AT CARCROSS, YUKON BY H.G. DICKSON, D.L.S. IN 1905/ PART OF CDN LANDMARKS COLLECTION, EST'D IN 1952 BY R.W. CLARK, D.L.S., S.L.S. THESE MARKERS SPACE OVER 200 YRS OF CANADIAN SURVEYING & INCLUDE ITEMS FROM EVERY PROVINCE & TERRITORY EXCEPT NFLD.

Function

SERVE AS MARKERS & REFERENCE POINTS FOR TRANSITMEN RUNNING A TANGENT ON A SURVEY LINE. HUBS ARE PLACED AT EACH ANGLE IN THE LINE, & AT CONVENIENT POINTS BETWEEN (IE. AT THE TOP OF A RISE), WHERE THE TRANSITMAN HAS VISIBILITY FORWARD & BACKWARD. SIGHTING FROM HUB TO HUB THE LINE IS ADVANCED. AT THE END OF EACH TANGENT WHERE THE LINE CHANGES DIRECTION THE ANGLE IS ACCURATELY MEASURED (REF.2, P.16).

Technical

THIS SYSTEM OF SURVEYING, EMPLOYING PLUMB LINES CENTERED OVER HUBS PLACED AT ANGLES AND RISES IN A SURVEY LINE PROVIDED FOR THE ACCURATE MEASUREMENT OF ANGLES. TOGETHER WITH DISTANCES & INFORMATION ON PHYSICAL FEATURES OF LAND RECORDED IN THE TRANSITMAN'S FIELD BOOK, THE SURVEY LINE CAN BE PRECISELY PLOTTED ON PAPER.

Area Notes

Unknown

Details

Markings

NONE

Missing

NONE. HUB IS COMPLETE WITH CENTRE TACK. From CA of 02/15/1994 by Tony Missio: No - Complete

Finish

Unknown

Decoration

N/A