EARLY GIMBALLED PLANE TABLE COMPASS mid-18th
An early Italian gimballed plane table compass mid-18th + original case
Dimension: 27cm long, compass diam. 10cm
It is made of heavy brass, it has a support arm, mounting hole, and twin gimbal rings maintaining the compass always in horizontal.
The compass itself is set in a weighted brass bowl and featured silvered plate scribed SE,OR,ME,OC. Original magnetized needle.
Condition is very fine throughout, complete with its shaped wooden case black paper-covered.
Although the fully gimballed design suggest nautical use, it perhaps was made for surveying in mountainous terrain or mines.
It was conceived to be attached to the edge of a plane table.
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Alpha Et Omega
Alpha et Omega is a recently established firm, based in Milan, Italy. We specialise in antique Scientific Instruments and rare Books to supply collections worldwide. Focus is given to optical and time-related instruments, especially before the Industrial Revolution but we are also interested in rare-to-find scientific and natural items and wunderkammer objects. Alpha et Omega also deals in rare books related to Early Science and Scientific Instruments. Please feel free to contact us for individual requests or desiderata.