German, dated 1854 on an accompanying piece of paper, signed to front of body tube 'GUNDLACH BERLIN No.185', on 'Y' shaped foot with swept support to rear, compass-type joint to the underside of the stage, plano-concave mirror in articulated arm, focusing substage on slide out dovetail, rotating goniometer stage with engraved scale to the edge with sliding slide holders, Watt-type linkage to body tube with a course focusing to the rear of the body tube, fine focus screw to the underside of the stage, accessories include; set of 6 objectives in a leather-covered case, 3 eyepieces, an eyepiece goniometer with Nichol prism and accompanying substage polariser, a substage condenser and a set of stops and other items in a fitted French polished mahogany case, Case measures 34cm wide

Provenance: the microscope belonged Hettie Jacobson (née Goldschmidt) a Jewish chemist who fled the Nazis in 1938 bringing this microscope with her.