General Information

Serial #

N/A

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

PLASTIC WITH METAL PARTS

Dimensions

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

Length

9.3 cm

Width

5.0 cm

Height

1.8 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Mathematics

Category

Calculating devices

Sub-Category

N/A

Manufacturer

AKA

Unknown

Country

Unknown

State/Province

Unknown

City

Unknown

Context

Country

Canada

State/Province

Ontario

Period

Unknown

Canada

DEVICE USED IN CANADA & ELSEWHERE BY SHOPPER TO MAINTAIN RUNNING TOTAL OF ITEMS PURCHASED.

Function

DEVICE USED TO ADD UP COSTS OF MULTIPLE ITEMS, TYPICALLY ITEMS FROM GROCERY STORE, & TO COMPARE UNIT COST OF GOODS, ULTIMATELY TO PERMIT SHOPPER TO GET BEST VALUE FOR MONEY.

Technical

MECHANICAL, CHEAP TO PRODUCE ADDING DEVICE WITH COST COMPARER ATTACHED TO BACK, ALL DESIGNED TO HELP COST CONSCIOUS SHOPPER.

Area Notes

Unknown

Details

Markings

WHITE LETTERING ON FRONT READS "SUPER/ ADD-A-MATIC/ REGISTERED TRADE MARK"/ BLACK DIAL MARKINGS/ BLACK & RED LETTERING ON CONVERTER ON BACK READS "U.S.A PATENT 3312395", "COST COMPARATOR", "PAT. APPLD-./ JAPAN" WITH RED & BLACK SCALE MARKINGS

Missing

APPEARS COMPLETE

Finish

RED CASING WITH WHITE BUTTONS, WHITE COMPARER ON BACK

Decoration

N/A