Description
Probably German in origin (Otto-type) constructed from a pleasing combination of lignum vitae wood, brass and steel.
10 inch (25cm.) tenon blade with minor pitting but NO missing teeth, screwed rather than pinned to the squared (almost rectangular) bow frame. The blade tension is controlled by a brass 4 sided adjuster that would have used a round steel key. The highly stylised lignum vitae handle (almost perfectly divided into heart wood and sap wood sides) is attached to the steel frame by a turned/cast ferrule. The frame is fairly non-descript except for where it meets the blade. At this point it is filed and 5 sided. The blade tension adjuster terminates in a pleasing turned brass button. The entire instrument has been used but not abused. At some point in it’s 250 year old life it has seen humidity issues as evidenced by the blade/frame minor pitting and also from the stable shrinkage crack in the pistol grip running parallel to the heart/sapwood of the lignum vitae. The flourishes of the handle have seen a couple of minor losses but this was during it’s useable life, many moons ago (see detailed photos).
Ask the Dealer
Dealer information
Scientifica Opticae Inc.
Scientifica Opticae
Mark Hacking (Scientifica Opticae Inc.) has been an avid collector/dealer for over 40 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). As of Nov. 1/24 my email has changed to either scioptimark@outlook.com or sciopti@outlook.com.















