General Information

Serial #

682

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

WOOD BASE & PLATFORM/ BRASS CASING, INTERNAL MECHANISM, BINDING POSTS & ADJUSTMENT KNOB/ STEEL CONTACT POINTS/ EBONITE/ WIRE

Dimensions

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

Length

19.5 cm

Width

15.0 cm

Height

17.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Communications

Category

Telegraphy

Sub-Category

N/A

Manufacturer

AKA

Automatic Telephone

Country

England

State/Province

Unknown

City

Liverpool

Context

Country

Unknown

State/Province

Unknown

Period

Unknown

Canada

Unknown

Function

A DEVICE WHICH OPENS OR CLOSES AN AUXILIARY CIRCUIT UNDER PREDETER- MINED ELECTRICAL CONDITIONS IN THE MAIN CIRCUIT. IT ENABLES A WEAK CURRENT TO BE STRONGER.

Technical

IMPROVED THE QUALITY AND CAPACITY OF LONG DISTANCE TELEGRAPH COMMUNICATION.

Area Notes

Unknown

Details

Markings

CIRCULAR MANUFACTURER'S PLATE ON BASE FRONT: 'A.T.M. CO. LTD./ LIVERPOOL/ ATM' ENCLOSED IN A CIRCLE/ ON BRASS CASING: 'THE ATM' ENCLOSED IN A CIRCLE/ 'HIGH-SPEED/ RELAY/ PAT. 156353/ 682'/ 'MARKING SPACING' WITH DIRECTIONARROWS OVER SIDE ADJUSTMENT KNOB/ BINDING POST MARKING: '(U)' ON BASE. MARKINGS ARE INCISED/ STAMPED INTO BOTTOM: 'TESTED/O.K.' ENCLOSED IN A SQUARE/STAMPED INTO BASE BOTTOM: 'R327'.

Missing

6 BINDING POST MARKINGS From CA of 08/12/1996 by Kevin Machan: Yes - Missing: all but one of the inlaid ivory letters on base.

Finish

VARNISHED WOOD BASE & PLATFORM/ INTERNAL ADJUSTMENT SCREWS PAINTED BLACK.

Decoration

BEVELLED GLASS EDGE.