General Information

Serial #

N/A

Part Number

1

Total Parts

22

AKA

N/A

Patents

N/A

General Description

INSTRUMENTS PRINCIPALLY MADE OF BRASS, STEEL & GERMAN SILVER. PROTRACTOR SCALE & PARALLEL RULES BELIEVED TO BE IVORY. TIN SQUARE. HOUSED IN MAHOGANY CASE; CASE & TRAYS LINED WITH VELVET/ (NB: NICKEL OR GERMAN SILVER IS AN ALLOY OF COPPER, NICKEL & ZINC; IT CONTAINS NO SILVER)

Dimensions

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

Length

27.0 cm

Width

14.5 cm

Height

9.1 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

Ontario

Period

C.1840S+

Canada

THIS SET OF DRAWING INSTRUMENTS WAS USED (AND PRESUMABLY MODIFIED/ ADDED TO BY JOSEPH M.O. CROMWELL, OLS.

Function

USED BY SURVEYORS & ENGINEERS FOR PRODUCING MAPS, TECHNICAL DRAWINGS ETC.

Technical

EXAMPLE OF BOXED SET OF DRAWING INSTRUMENTS, STANDARD TOOLS FOR MID-19TH C. SURVEYORS. THIS SET INCLUDES SOME LATER INSTRUMENTS, PRESUMABLY ADDED BY JOSEPH CROMWELL, OLS. CROMWELL HIMSELF MADE THE SQUARE FITTED IN THE CASE LID.

Area Notes

Unknown

Details

Markings

.20-.21 INSCRIBED 'TROUGHTON & SIMMS, LONDON'/ SEE DESCRIPTION OF SCALES, ETC. IN SUPP.INFO.

Missing

UNKNOWN, AS INSTRUMENTS HAVE BEEN ADDED FROM LATER PERIOD. LOCK MISSING FROM CASE

Finish

MOST INSTRUMENTS ARE COMBINATION OF NATURAL BRASS & STEEL OR ARE DULL SILVER. MEDIUM BROWN MAHOGANY CASE & TRAYS LINED WITH ROYAL BLUE VELVET

Decoration

N/A