Ancient Art, Antiquities, Books, Natural History, Stamps & Coins

A Carcharocles megalodon shark tooth, with serrations and polished tooth enamel. 105 grams, 90 mm



From a Lincolnshire, UK, collection.

Carcharodon megalodon is regarded as one of the largest and most powerful marine predators in vertebrate history and likely had a profound impact on the structuring of the marine communities. Fossil remains indicate that this giant shark reached a length of more than 16 metres (52 ft) and also affirm that it had a cosmopolitan distribution. Scientists suggest that in life it looked like a stockier version of the great white shark, Carcharodon carcharias.

Comprising one hundred vivid canary-yellow specimens. 1.3 kg total, 10-50 mm



From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.

Polygonal mortality display containing a large number of bivalves. 6.85 kg, 35.2 cm



From a Cambridgeshire, UK, collection.

Comprising three different types of insects, one likely a locust. 90 grams total, 47-56 mm



From Brazil. From the private collection of Kenneth Machin (1936-2020), Buckinghamshire, UK; his collection of antiquities and natural history was formed since 1948; thence by descent.

Thysanopeltidae scutellum on a textured matrix, showing detail of the characteristic fan-like tail shield. 386 grams, 99 mm



From the private collection of Kenneth Machin (1936-2020), Buckinghamshire, UK; his collection of antiquities and natural history was formed since 1948; thence by descent.

Large section of a fossilised vertebra with two raised projections on one side, possibly from a mosasaur. 407 grams, 96 mm3 3/4 in.



From Abingdon, Oxfordshire. From the private collection of Kenneth Machin (1936-2020), Buckinghamshire, UK; his collection of antiquities and natural history was formed since 1948; thence by descent.

The remains of a fossil crab set in a sedimentary matrix with its legs and claws curled underneath the body. 1.16 kg, 13.4 cm



From a Cambridgeshire, UK, collection.

Mixed group of bone and teeth fragments, including molars and canines. 193 grams total, 14-73 mm



Previously in several old Stone Age tool collections, having been annotated with two different accession numbers. Acquired from an Oxfordshire, UK, auction house. From the private collection of a West Midlands lady collector.

An irregular matrix with multiple Southern beech leaves. 301 grams, 18 cm



From the Redbank Plains formation, Ebbw Vale, Ipswich, Queensland, Australia. From the private collection of Kenneth Machin (1936-2020), Buckinghamshire, UK; his collection of antiquities and natural history was formed since 1948; thence by descent.

A complete half of a pyramidal geode, showing deep purple amethyst crystals with tan-coloured druzy quartz; mounted on a custom-made display stand. 40.65 kg, 84 x 38 x 17 cm, 112 cm including stand



From Artigas, Uruguay. Property of a London lady.

A polished geode section with large prismatic quartz crystals in flower-like radiating clusters; mounted on a custom-made display stand. 16.4 kg, 30 x 34 x 23 cm, 35 cm including stand



From Artigas, Uruguay. Property of a London lady.

Comprising a set of six round coasters and a holder, carved from fossiliferous stone. 700 grams total, 91 mm



Ex Cambridgeshire, UK, collection.