Details
An early 18th-Century brass and stained ivory Culpeper-pattern screw-barrel microscope,
unsigned, the screw-barrel section with sprung slide holder, fitted to the upper section of the turned pillar via burnished-iron butterfly-wing nut and triangular section male and female joint and located by ball and socket, the compound tube of stained ivory with vellum insert, lens, sliding-tube focusing and screw adjustment to locate in the screw-barrel section, with finely modelled and shaped arm for use with the numbered set of six bead glass objectives, (number 6 lacking bead), numbers 1-4 with ivory dust caps, (number 5 missing), with lieberkuhn, specimen forceps and clamp, and three matching ivory sliders, another ivory slider with six specimens, and another ivory slider, the pillar with adjustable articulated arm with mirror, secured by two burnished-iron butterfly-wing nuts and triangular section male and female socket, raised on a rectangular section base, when dismantled contained in the original green plush-lined fitted fishskin-covered case -- 8.5/8in. (22cm.) wide
See Colour Illustration and Detail
unsigned, the screw-barrel section with sprung slide holder, fitted to the upper section of the turned pillar via burnished-iron butterfly-wing nut and triangular section male and female joint and located by ball and socket, the compound tube of stained ivory with vellum insert, lens, sliding-tube focusing and screw adjustment to locate in the screw-barrel section, with finely modelled and shaped arm for use with the numbered set of six bead glass objectives, (number 6 lacking bead), numbers 1-4 with ivory dust caps, (number 5 missing), with lieberkuhn, specimen forceps and clamp, and three matching ivory sliders, another ivory slider with six specimens, and another ivory slider, the pillar with adjustable articulated arm with mirror, secured by two burnished-iron butterfly-wing nuts and triangular section male and female socket, raised on a rectangular section base, when dismantled contained in the original green plush-lined fitted fishskin-covered case -- 8.5/8in. (22cm.) wide
See Colour Illustration and Detail
Literature
Turner, G.L'E. The Great Age of the Microscope, p. 252 shows a similar but signed example with the more usual folding tripod stand.
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