A Swift Student Petrological Microscope, c.1900, English, signed to foot Swift & Son, London, supported on a black enamel foot with plano-concave mirror on an articulated arm, with swing out sub-stage polariser and pull out condenser, rotating black glass stage, body tube incorporating a slide in/out analyser and Bertrand lens, with two Swift objectives, two eyepieces and other items in fitted mahogany case, width 34cm