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

Comprising six circular coasters, the Orthoceras have been polished through the shell to reveal the calcite preserved inside and showing the dividing gas chambers known as suture patterns. 682 grams, 91 mm wide



From a Cambridgeshire, UK, collection.

Restrung, using recently polished Mammuthus primigenius spherical bone beads. 148 grams, 62 cm



From a UK collection formed in the 1980s. Property of an Essex, UK, gentleman.

The mammoth lineage branched from the Asian elephant around 6 million years ago, and later on the Woolly Mammoth, Mammuthus primigenius, evolved in eastern Siberia. Woolly mammoths, being slightly smaller than living African elephants, were foragers and ate grass, as well as small, nutritious flowering plants that flourished in the environment where they lived. They may also have used their curved tusks to dig through snow and eat plants that other foragers were unable to reach.

Composed of polished polygonal, discoid and other beads, restrung with a metal hook-and-loop clasp. 58 grams, 54 cm



Acquired in the 1990s-early 2000s. Ex London, UK, collection.

Polished geode section with six rounded openings creating windows to the inside of the geode, the internal walls lined with vibrant purple amethyst crystals; mounted on a custom-made display stand. 3.15 kg, 24.5 x 16 x 11 cm, 35.5 cm including stand



From Artigas, Uruguay. Property of a London lady.

Orange translucent amber with a pair of Diptera inclusions. 3.5 grams , 37 mm



From a Norfolk, UK, collection.

With large claws, from the Solnhofen limestone. 268 grams, 12.5 cm



From a Cambridgeshire, UK, collection.

Comprising the body and both front legs with claws. 34.6 grams, 60 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.

Opaque dark blue crystal showing lamellar twinning. 0.79 grams, 9 mm



Property of an Essex, UK, gentleman.

Comprising three polished specimens showing the internal structure. 360 grams total, 60-91 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.

A polished underside of a geode containing upward-reaching stalagmites covered in druzy brown quartz and small, sparkling white quartz crystals; mounted on a custom-made display stand. 6 kg, 15 x 30 x 17cm, 20 cm including stand



From Artigas, Uruguay. Property of a London lady.

Composite nodule with enhanced green crystals. 115 grams total, 53-56 mm



From a Cambridgeshire, UK, collection.

Group of fourteen pyramidal points. 2.88 kg total, 58-84 mm



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