The assemblage set on a sandstone matrix comprising two shark teeth and a Mosasaur prognathodon tooth. 178 grams, 81 mm

From a Cambridgeshire, UK, collection.
Property of a Cambridgeshire, UK, gentleman.

From the left side of Ursus spelaeuslower jaw, displaying a canine (repaired) and three molars. 312 grams, 20.3 cm

From the private collection of a London gentleman formed since 2003.

The cave bear was a prehistoric species of bear that lived in Europe and Asia, and became extinct about 24,000 years ago during the Last Glacial Maximum.

Comprising three rounded matrices, each with a single Knightia alta specimen. 142 grams total, 73-75 mm

From a Lincolnshire, UK, collection.
Property of a Cambridgeshire, UK, gentleman.

A large natural conch shell showing 'horns' to perimeter. 1.76 grams, 21.5 cm

Acquired within the UK.
Ian Wilkinson collection, Nottinghamshire, UK, formed since 1985.

Freestanding, showing good ribbing. 987 grams, 13 cm wide

From a Cambridgeshire, UK, collection.
Property of a Cambridgeshire, UK, gentleman.

A highly polished rectangular slice of the Seymchan meteorite with an exceptional number of transparent olivine inclusions, repaired. 62.4 grams, 12 cm

From the private collection of a London gentleman, from his grandfather's collection formed before the early 1970s.

See Graham, A.L., Bevan, A.W.R. & Hutchison, R., Catalogue of Meteorites, London, 1985, p.323; report of geologist F. A. Mednikov (Magadan, USSR) in a letter, VIII 15, 1967 and of V. 1. Zvetkov (Moscow, USSR) in a letter X 17, 1967; see also Meteoritical Bulletin No.43, Moscow (1968) and database.

The main mass of 272.3 kilograms was found during a survey in June 1967 by geologist F. A. Mednikov. The mass was a triangular-shaped thumb printed meteorite lying among the stones of the brook bed. A second specimen of 51 kilograms was found with a mine detector at a distance of 20 meters from the first in October 1967 by I. H. Markov. During a new expedition in 2004, Dmitri Kachalin recovered about 50 kilograms of new material. Remarkably, about 20% of the new specimens were found to contain olivine crystals, and so revealed the silicate nature of the meteorite. The pallasitic structure was not previously discovered during studies on small metal-only sections of the original mass. The distortion of the Widmanstatten patterns is interpreted as shearing of the superheated meteorite as it broke up in the Earth's atmosphere.

With several insect inclusions including ants and flying insects. 18 grams, 92 mm

From a Lincolnshire, UK, collection.
Property of a Cambridgeshire, UK, gentleman.

The mortality plate comprising fifteen variously sized Flexicalymene specimens. 2.78 kg, 25 cm

From a Cambridgeshire, UK, collection.
Property of a Cambridgeshire, UK, gentleman.

Restrung using recently polished Mammuthus primigenius bone beads. 166 grams, 60 cm long

Ex London collection, 2000s.

Comprising a large Otodus obliquus tooth; supplied in a display frame. 28.3 grams, 60 mm (64 grams total, 13 cm high including case)

From a Cambridgeshire, UK, collection.
Property of a Cambridgeshire, UK, gentleman.

With replicated dentition, small eye sockets and broad cheekbones; perhaps Australopithecus. 1.44 kg, 21.5 cm

From a collection acquired on the UK art market from various auction houses and collections mostly before 2000.
From an important Cambridgeshire estate; thence by descent.

Meteorite in a cuboid capsule; classified as a stony–iron pallasite, Imilac specimens are highly prized by meteorite collectors. 0.4 grams, 9 mm

Found in Chile's Atacama desert while filming an episode of the TV series Meterorite Men.
Acquired from Steve Arnold, co-star of 'Meteorite Men'.
Ian Wilkinson collection, Nottinghamshire, UK.

Accompanied by a authenticity card signed by Steve Arnold.