Accession No

3980

Brief Description

Circular mechanical money calculator by Bri-Cal, 20th C

Origin

Maker

Brical

Class

calculating

Earliest Date

1900

Latest Date

1970

Inscription Date

Material

metal (brass, white metal); plastic (ivorine); wood; hide (leather); cloth (velvet, satin, baize)

Dimensions

diameter 134mm; thickness 9mm; box breadth 165mm; depth 163mm; thickness 26mm

Special Collection

Provenance

Purchased at the Scientific Instruments Fair, London, England, 1993.

Inscription

‘BRI-
ADDING MACHINES
CAL
PATENT’ (on front)

Description Notes

circular mechanical calculator, brass and black-painted metal and lined with green baize on underside. Ivorine stylus. Four rows of numbers for calculating in pounds, shillings and pence. Red tooth marks beginning of scale. In fitted case lined with green velvet and green satin ribbon for lifting calculator out of case. Brass hinges and clip fastener. One other stylus missing. Outer row mechanism stiff.

Condition good (lifting ribbon torn); incomplete (one stylus missing)

References

Events