Pair of uncut 'Watford' Crookes lenses in original packets
 Catalogue Number: 4304 Pair of uncut 'Watford' Crookes lenses in original packets Category: Spectacles and lenses Sub-Category: Spectacle lenses Corporation: British American Optical Co. Ltd. Year Of Publication/Manufacture: 1950s? Place Of Publication/Manufacture: Watford, England Publisher/Manufacturer: British American Optical Description Of Item: Pair of spherical Crookes glass meniscus lenses. Light brown packet with buff coloured strip at top of packet. 'Watford, Crookes meniscus,Made in England' in black print, 'BAO' in buff coloured lettering '-0.25 sph Crookes A' hand-written on both packets in blue biro.Lenses 48 mm round, packet 56 mm square. Historical Significance: See Cat.# 2132 for information about the development of Crookes lenses. How Acquired: Donated by Elizabeth Hatfield Date Acquired: 14/06/2017 Condition: very good Location: Documents Room Green Daytona Cabinet Drawer 4 |