General Information

Serial #

13923

Part Number

1

Total Parts

2

AKA

N/A

Patents

N/A

General Description

BRASS TUBE & HOUSING/ GLASS OPTICS

Dimensions

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

Length

16.5 cm

Width

5.7 cm

Height

N/A

Thickness

5.5 cm

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Photography

Category

Still camera parts

Sub-Category

N/A

Manufacturer

AKA

TAYLOR HOBSON

Country

England

State/Province

Unknown

City

Leichester

Context

Country

Canada

State/Province

Ontario

Period

Unknown

Canada

EQUIPMENT USED AT DOMINION OBSERVATORY, CANADA'S PREDOMINANT ASTRONOMICAL OBSERVATORY WHICH OPERATED FROM 1905 TO 1970.

Function

OPTICAL COMPONENT OF CAMERA WHICH FUNCTIONS BY BENDING LIGHT RAYS TO CREATE IMAGE WHICH IS IMPRINTED ON FILM IN CAMERA, FORMING PHOTOGRAPH.

Technical

H.D. TAYLOR WORKED FOR T.COOKE & SONS, TELESCOPE MAKERS IN YORK & IN 1893 HE DESIGNED FAMOUS & ENTIRELY NEW TRIPLET CAMERA LENS. SINCE COOKE DID NOT MAKEPHOTOGRAPHIC EQ., TAYLOR OFFERED DESIGN TO TAYLOR, TAYLOR & HOBSON (NO RELATION) OF LEICESTER, WHO UNDERTOOK TO MFR. IT AS COOKE TRIPLET (REF. 1).

Area Notes

Unknown

Details

Markings

INCISED LETTERING ON LENS READING "COOKE LENS/ H.D. Taylor's patents/ Series III. 7 x 5 inches Eq. focus 8.6 inches" & "TAYLOR TAYLOR & HOBSON/ Leicester & London/ No 13923"/ INCISED LETTERING ON TUBE READS "2421" WITH MARKINGS FOR "RO", "MP", "Eq. F", "SC"

Missing

APPEARS COMPLETE

Finish

COATED (LACQUERED?) BRASS COLOURED METAL

Decoration

N/A