Natural History - Large Woolly Mammoth Tusk

Pleistocene Period, circa 40.000 years B.P. A large woolly rhinoceros Coelodonta antiquitatis vertebra. 564 grams, 16 cm (6 1/4 in.). From Brown Bank, off Lowestoft, UK.Acquired before 1960.From an ol

Comprising lacquered porphyry slice of irregular shape, cut and polished on one side, probably recycled material mined in ancient Roman times between the 1st and 5th century A.D. 917 grams, 28 cm (11

A graduated group of oblate amber beads. 100 grams, 32cm (12 3/4"). Property of a London gentleman; acquired from his father's collection.

A graduated group of oblate amber beads. 78 grams, 39cm (15 1/2"). Property of a London gentleman; acquired from his father's collection.

A large natural history southern slider turtle shell. Full hollow semi-aquatic shell from turtle indigenous to the Southeastern United States. Rich natural brown and beige palette. In natural state wi

Miocene Period, circa 25 million years B.P.. Composed of several fossil sea urchins or sand dollars in a matrix. 4.6 kg, 34.5 cm (13 5/8 in.). From France.

Eocene Period, circa 56-33 million years B.P. The large sandstone matrix with five Knightia alta specimens. 8.25 kg, 50.5 x 38 cm (19 7/8 x 15 in.). From a Lincolnshire, UK, collection. In southwest W

6th-4th millennium B.C. Formed in a translucent, amorphous lump with possible inclusions. 285 grams, 12 cm (4 3/4 in.). Acquired UK market. Property of a Kent collector. [No Reserve]

Found 2022 A.D. The cut and polished slice held in a custom-made collector's display box. 51 grams total, 84 mm wide including case (3 3/8 in.). From the Sahara Desert, North Africa. Property of a Sus

Jurassic Period, 199-145 million years BP. A sedimentary slate(?) matrix with two large examples of the psiloceras ammonite and numerous others. 28 kg, 75cm (29 1/2"). From an important London collect

With seal of the Spanish Ministry of Culture. Printing on large size photo paper. Provenance: former private collection of a collector and renowned Barcelona doctor, Barcelona. Liquidation of family i

With seal of the Spanish Ministry of Culture. Printing on large size photo paper. Provenance: former private collection of a collector and renowned Barcelona doctor, Barcelona. Liquidation of family i

A large, freeform facetted quartz with with approximately 21 facets, and with internal structures producing 'rainbow' reflections, from Brazil, in old white card tray with label reading: 'FACETED QUAR

Late Cretaceous Period, Cenomanian-Turonian Stages, circa 100- 90 million years B.P.. A freestanding example of a large Mammites nodosoides fossil ammonite. 3 kg, 20 cm (7 7/8 in.). From Morocco, Nort

A large, orange, surf-rounded pebble of beach amber, in white card tray, See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 2008, p.314-317. 35 grams, 50mm (2"). From the historic ‘Victorian Museum��

Devonian Period, circa 417-354 million years B.P. The extinct nautiloid cephalopod polished to reveal the internal gas chambers and set on a textured freestanding matrix. 15.8 kg, 1.01 m (39 3/4 in.).

A cut and polished fluorite crystal obelisk with bands of green and purple colour. 240 grams, 13cm (5"). From a historic ‘Victorian Museum’ collection; from the stock of Gregory, Bottley & Lloyd (

Devonian Period, 417-354 million years B.P. A large fossil Cambropallas sp. trilobite in a matrix. 2.7 kg, 29 cm (11 3/8 in.). From Morocco, North Africa.Ex Cambridgeshire, UK, collection. [No Reserve

Upper Devonian Period, 370 million years B.P.. The freestanding textured matrix containing four specimens. 1.77 kg, 18 cm high (7 1/8 in.). Ex Cambridgeshire, UK, collection. [No Reserve]

A large pink agate crystal slice, polished on both faces; colour-enhanced. 484 grams, 23.5 cm (9 1/4 in.). From Antigas, Uraguay.Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [No R

Lower Jurassic, Toarcian Stage, Upper Lias, Grey Shales, 199-175 million years BP. A large split Dactylioceras commune ammonite nodule, showing both positive and negative aspects, from Whitby, UK. 632

. With enhanced pink-colour and also showing translucent to opaque quartz crystals. 539 grams, 23.2 cm (9 1/8 in.). Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). [No Reserve]

Cretaceous Period, circa 100 million years B.P.. Featuring two echinoid specimens in an irregular matrix. 2.8 kg, 17.5 cm (7 in.). From Morocco, North Africa. [No Reserve]

A large single amethyst crystal from a now extinct Australian deposit, with generally lighter, lilac amethyst but with the edges of the faces highlighted in darker amethyst. Found Australia; from the