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

Comprising ten irregular, rounded pieces with typical surface indentations. 45 grams total, 16-33 mm



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

Tektites are lumps of black or dark grey natural glass produced from melted crustal rocks caused by large hypervelocity meteorite impacts on sediments.

An irregular matrix with Ophiuroidea sp. specimen. 362 grams, 16 cm



From a Cambridgeshire, UK, collection.

Showing two elongated genals protruding from its cephalon. 141 grams, 72 mm



From a Norfolk, UK, collection.

With an ovate cephalon and an outer bilaminar brim extending posteriorly to long genal prolongations. 475 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.

Shallow dish composed of two conjoined heart-shaped dishes, each set with a goniatite specimen. 422 grams, 20.4 cm



Ex Cambridgeshire, UK, collection.

Comprising variously sized polished Orthoceras sp. specimens on a textured freestanding matrix. 1.34 kg, 21.5 cm



From a Cambridgeshire, UK, collection.

Thick, oval slice of a geode showing contrasting grey banding with some quartz crystals at the centre. 1.07 kg, 20 cm



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

Showing distinctive ribbing. 426 grams, 10.4 cm



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.

Comprising a partial root and the tooth with dark enamel. 210 grams, 10.8 cm



Perma frost of Siberia. From a Netherlands collector in the 2020s. From a private collection.

Comprising nine prismatic rock crystal points with pyramidal terminations, and thirteen agate specimens, some with crystal-lined interiors. 1.78 kg total, 2.8-10.2 cm



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

Composed of spherical, melon, and other beads, central feature a facetted biconical bead; restrung. 30 grams, 36.5 cm



From the London, UK, art market in the 1990s.

On a rectangular matrix and showing good detail on the spine and fins. 709 grams, 20.2 cm



From Green River formation, Wyoming, USA. 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.