Welcome to Geometricum


All objects are for sale

Old Scientific Instruments from 15th to 18th Century

Dividers, Drawing Instruments, Surveying Instruments and others.

Sold objects are listed here


Old Scientific Books from 15th to 19th Century

Practical Geometry, Surveying, Tables

Complete book collection is sold - see details


New objects in Auction by Ricardo - see end of page


Additional objects from my collection for sale. Please contact me for more information by mail.


Drawing instruments boxed, Lot of 18. Drawing Sets by Kern or Gysi, Switzerland. new price

see my Blog 


Fruit Wood Divider with Arc, Baroque, 17 or 18th century, 92 cm.

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Brass Graphometer by Esser early 19th century.

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Planimeter by Kern & Cie Aarau, Suisse, German Silver, early 20th century.

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Small Brass Divider with Arc, 19th century, 9 cm.

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Small Iron Divider, 17th Century, 22 cm. (OBJ_004)

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Drawing Set, 19th century, in wooden Box, 21 x 8 cm

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Iron and Brass Divider, 16th century, 18 cm

see my Blog


Iron Divider, 16th Century, 15 cm, with Ring Holder

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Set of 3 Dividers in German Silver and Alu, 19th and 20th Century. 8.5 cm, 13.0 cm, 14.6 cm

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Reduction compass in Brass, German, 19th century, 22.5 cm.

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English Drawing Set in fishskin Box, late 18th century, 17.5. x 8.0 cm.

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Byzantine Wight, 6./9. Century, in Bronce.

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Folding Square by Butterfield, Paris, ca. 1710.

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Brass Sector by t. Wright, London, ca. 1715 - 1746.

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Iron Divider, marked SH, 17 cm, 17th century, see my Blog


Big Globe Head Divider in Brass and Iron, Museum Quality, 16th century.

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Astrological Ring, 75 mm, in silver and gilded brass, early 19th century, for sale.

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Astrolabe by Habermel c. 1600, recreation in Brass, for sale.

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French sector by Cadot, 1738, for sale.

see my Blog.


Graphometer, german or italien, 17th century,  for sale, see my Blog


English Sector of 17th century,  for sale, see my Blog


Alidade by Bartenschlager, Schaffhausen, ca. 1760,  for sale, see my Blog

 


Roman Divider in Bronze,  for sale.

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15th century Fruit Wood Divider, for sale.

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Lot of Mariner Dividers in Brass and Iron, 19th and 20th Century.

Reserved

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Reserved items


Currently in auction

Ricardo Auctions
Ricardo Auctions