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Details
An educational polarized-light demonstration apparatus
unsigned, comprising hinged plates of ground and plain glass to be stood on top of a horizontal mirror, a brass eyepiece on wire support and three analyser attachments, with six square sliders containing two selenite samples, an image of a butterfly and samples of calc spar, nitre and quartz and benzoic acid, with an unmounted selenite sample and instructions, in a stained pine case -- 36cm. (14 1/8in.) wide
See Illustration
unsigned, comprising hinged plates of ground and plain glass to be stood on top of a horizontal mirror, a brass eyepiece on wire support and three analyser attachments, with six square sliders containing two selenite samples, an image of a butterfly and samples of calc spar, nitre and quartz and benzoic acid, with an unmounted selenite sample and instructions, in a stained pine case -- 36cm. (14 1/8in.) wide
See Illustration
Special notice
No VAT will be charged on the hammer price, but VAT at 17.5% will be added to the buyer's premium which is invoiced on a VAT inclusive basis