General Information

Serial #

54879

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

METAL/ GLASS/ BAKELITE

Dimensions

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

Length

N/A

Width

25.0 cm

Height

23.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Horology

Category

Timing devices

Sub-Category

N/A

Manufacturer

AKA

Calculagraph

Country

United States of America

State/Province

New Jersey

City

Harrison

Context

Country

Unknown

State/Province

Unknown

Period

CIRCA 1920'S

Canada

USED THROUGHOUT CANADA

Function

USED TO TIME LONG DISTANCE CALLS IN A TELEPHONE OFFICE

Technical

BASED ON AN 1897 U.S. PATENT, THE MODEL 6 CALCULAGRAPH IS CLOCKWORK DRIVEN AND AUTOMATICALLY CALCULATES AND PRINTS THE ELAPSED TIME BETWEEN THE START AND END OF A CALL. THE MODEL 6 WAS INTRODUCED BEFORE 1900 AND WAS MORE OR LESS REPLACED BY THE ELECTRICALLY DRIVEN MODEL 30 IN 1930. MANY CONTINUED TO BE USED FOR YEARS, HOWEVER, SO IT IS VERY DIFFICULT TO DATE A PARTICULAR UNIT ACCURATELY. THIS UNIT IS MOUNTED IN A SWITCHBOARD STRUCTURE DESIGNED TO BE PLACED IN A SWITCHBOARD LINE-UP. THE CABINET IS PHYSICALLY AND VISUALLY COMPATIBLE WITH THE 105B MAGNETO SWITCHBOARD.

Area Notes

Unknown

Details

Markings

ENGRAVED INTO METAL PLATE IS: 'CALCULAGRAPH', WITH US PATENT NUMBERS TO THE LEFT & TRADE MARK NUMBERS TO THE RIGHT/ ENGRAVED IN RED IN THE CLOCK'S FACE IS: 'CALCULAGRAPH'/ BELOW THIS IS ALSO ENGRAVED IN BLACK: 'CALCULAGRAPH CO./ HARRISON, N.J./U.S.A.'

Missing

APPEARS COMPLETE/ CLOCK NOT RUNNING

Finish

METAL BOTTOM PAINTED BLACK

Decoration

N/A