Diverse and universal, this attachment seen on Swift’s No. 1 stands (Paragon,etc.) is a fine example of his early work (produced 1870-1910). One and a half inch diameter substage tube, rotating substage accessory with light filters, wheel of stops, etc. This particular example has a separate polariser and Nicol-type light condenser mounted on opposite ends. Rarely used, it is a marvel of technology and machining. Capable of accommodating objectives, selenite analyzers, etc. Improved and modified over a period of 40 years but essentially the same basic design first seen by the RMS in 1868 when W.H. Hall approached Swift to produce it.
Ask the Dealer
Mark Hacking (Scientifica Opticae Inc.) has been an avid collector/dealer for over 30 years. A former Science teacher, he has an innate love for anything natural or mechanical. Specializing in optical (microscopes, telescopes), surveying, medical, weighing and drawing instruments, he is an active participant of the Scientific Instrument Fair in London. Living in Stratford, Ontario, Canada, with his wife and two children; Mark looks forward to meeting as many fellow collectors as possible, and has a worldwide following on eBay (Sciopti).
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