This barrel microscope from the manufacturer J. H. Steward has a larger size. Its measurements are 180 mm. height and 55 mm. in diameter at the base, on which the manufacturer’s name is engraved.
- H. Steward was a reputable English manufacturer who had his optics workshop at 406 London Strand. In this collection there are two large microscopes manufactured in this workshop: Nos. 63 and 63 a.