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LOT 2317
Natural History - Fossil African 'T-Rex' Tooth
CRETACEOUS PERIOD, CIRCA 145-93 MILLION YEARS B.P.
1 1/8 in. (3.34 grams, 29 mm).
With some serration and good enamel, from Carcharodontosaurus saharicus; repaired. [No Reserve]
ProvenanceFrom the Tegana formation of the Sahara Desert, Morocco, North Africa.
Acquired during 1980s.
From an old Lincolnshire, UK, collection.
The Carcharodontosaurus saharicus was one of the largest predators (larger than its distant North American T-Rex cousin) of all time and is also related to Allosaurus and the South American Giganotosaurus.
CONDITIONTimeLine Auctions follows a vetting process to ensure the authenticity and legality of all items, reinforcing our commitment to integrity and responsible trading. Each antiquity, antique, and coin lot undergoes thorough examination by a vetting committee of at least ten external specialists, professional trade association members, scientists, and archaeologists: Our Vetting Process
AUCTIONS:
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Natural History - Boxed Selenite Mineral Specimen Group [10]
Sold for (Inc. bp): £13
Comprising ten cut wand sections showing typical bifringence; each in a cardboard specimen box. 174 grams total, 23-33 mm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
![Natural History - Cut and Polished Agate Crystal Geode End Group [4]](https://timelineauctions.com/upload/images/items/small/211349-s.jpg)
Natural History - Cut and Polished Agate Crystal Geode End Group [4]
Sold for (Inc. bp): £13
Comprising four cut and polished ends, one with light coloured banding; one with milky white layer above dark brown banding; one with dark rounded formations forming a 'Mickey Mouse' head; one with light grey and yellow banding forming a 'happy face'. 653 grams total, 9.1-10.8 cm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Mineralogical Geometry Set
French, circa 1850 A.D.Sold for (Inc. bp): £2,340
A rare complete set of folded-card polyhedrons, each with extensive printed notes on the surfaces, dimension and properties; to be assembled from the 120 components into two adjacent cuboids within a wooden box with hinged lid and paper insert announcing 'Géométrie Stéréométrique -ou- Décomposition du cube en polyèdres réguliers, irréguliers et corps ronds... par L. Dupin Ing.eur' (Stereometric Geometry or the disassembly of the cube into regular and irregular polyhedrons and cylinders... by L. Dupin, Inventor). 463 grams total, 23.3 x 12.3 x 6.7 cm (case)
Private American collection, New York, USA. This lot has been checked against the Interpol Database of stolen works of art and is accompanied by search certificate no.12065-211002.
The box contains an educational set of geometric shapes comprising 120 individual three-dimensional cardboard pieces with printed names and numbers corresponding to the key, arranged in various smaller interlocking configurations. The producer, Louis Dupin de la Guérinière, was a French civil engineer who began to produce and sell folded models to show the physical properties of polyhedrons. His models were intended not only as educational aids for students of mathematics, but also for those whose work involved perspective drawing, stone-cutting and mineralogy. The sets began production in the 1840s and were a popular study-aid. The present example has an adhesive label in the lid naming the supplier as Crosti of Rue Ste. Catherine, Bordeaux, France.
