German, c.1900, engraved to the body tube 'CARL ZEISS JENA Nr. 43277' and engraved on the foot in script 'Katherine M. L. Gamge' then covered by another plaque (unscrewed) engraved 'Eric Impey, Cambridge' microscope with plano-concave mirror, Abbe condenser on rack focusing, rotating mechanical stage, single drawer tube, separate simple stage, 5 Zeiss objectives, 5 eyepieces in a Zeiss leather outer case