Accession No

0778

Brief Description

recipiangle, brass mathematical instrument, by Vernie, 1607

Origin

France

Maker

Vernie [maker] Dulac ['inventor']

Class

calculating

Earliest Date

1607

Latest Date

1607

Inscription Date

1607

Material

metal (brass, steel)

Dimensions

length 230mm; breadth 74mm; thickness 6mm

Special Collection

Robert Whipple collection

Provenance

Purchased from Antique Art Galleries, London, England, on 08/03/1935.

Inscription

‘Vernie Fecit
1607’ [at centre]
‘Dulac Inuentor ‘ [bottom left]

Description Notes

Recipiangle, brass mathematical instrument, made by Vernie, 1607.

semicircular instrument with one fixed limb and one rotating limb, each fitted with steel compass point. Obverse of semicircle carries the following scales. Degree scale divided [0] - 180 numbered by 10; Zodiacal scale divided [0] - 180 and [0] - 30 six times numbered by 10, subdivided to 1; date scale divided 20th March - 23rd September and back again marked by month numbered 10 - 20 - 28 (30 or 31 as appropriate); central uneven scale divided 3 - 10 numbered by 1. Limbs when fully opened carry foot scale marked ‘Le pied de Roy’ with eleventh inch divided to 1/10. Both limbs also carry uneven scale divided 2 - 10 numbered by 1. Reverse carries scales of hours for different zodiacal signs with sunrise/sunset line running down the centre of the semicircle. Hours for summer months given on the right, hours for winter months on the left. Both limbs of compass carry unequal scale divided 3 - 7 numbered by 1.

Complete

[NOTE: On 15/04/2015 XRF analysis was conducted on this instrument. Results and analysis are given in the ‘Notes’ field.]

References

Events