A 70 mm. long, bone combination wax letter seal and perpetual calendar with hollow stem for pounce? 15 mm. at it’s widest, 10 mm. diameter stem (hollow 5 mm. diameter with screw off top portion). Bottom is checkered (stained with ink but removable-interchangeable?), rotatable lower ring for days of the week and a full 31 day calendar divided into weeks ( 5 x 7 day rows with last row having 4 X’s). Fine machining of the stem and divided in to two, hollow and threaded sections for pounce? wax? pencil leads ? nibs ? Two old, stable cracks in upper section, probably from over tightening. A most unusual and rare desk item for the connoisseur. Probably Georgian.
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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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