Home > Auctions > 4 - 9 March 2025
Ancient Art, Antiquities, Books, Natural History & Coins
![Complete Cut and Polished Agate Crystal Geode [2]](https://timelineauctions.com/upload/images/items/small/227850-s.jpg "Complete Cut and Polished Agate Crystal Geode [2]")
An almost spherical geode with brown and grey banding, the internal cavity filled with deep coloured amethyst crystals and clusters of grey calcite. 520 grams total, 80-82 mm
From Brazil.
Ex Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
From Brazil.
Ex Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
Sold for (Inc. bp): £124
Platyostoma niagarensis set on an irregular matrix. 242 grams, 92 mm
Acquired Hunstanton, UK.
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.
Acquired Hunstanton, UK.
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.
Sold for (Inc. bp): £390
From Carcharocles megalodon polished, showing some good enamel. 369 grams, 11.9 cm
From Aurora, North Carolina, 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.
Carcharodon megalodon is regarded as one of the largest and most powerful marine predators in vertebrate history and likely had a profound impact on 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.
From Aurora, North Carolina, 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.
Carcharodon megalodon is regarded as one of the largest and most powerful marine predators in vertebrate history and likely had a profound impact on 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 thirty-one necklaces with oblate and tubular beads in lapis lazuli, serpentine, steatite and other stones. 313 grams total, each app. 46 cm long
Ex property of a London, UK, gentleman; acquired from his father's collection.
Property of a Californian, USA, collector.
Ex property of a London, UK, gentleman; acquired from his father's collection.
Property of a Californian, USA, collector.
![Cut and Polished Agate Geode Half Collection [10]](https://timelineauctions.com/upload/images/items/small/227827-s.jpg "Cut and Polished Agate Geode Half Collection [10]")
Each with one polished face displaying mainly brown and grey banding. 1.98 kg total, 61-74 mm
From Brazil.
Ex Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
From Brazil.
Ex Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
A freestanding geode section lined with vibrant prismatic amethyst crystals. 648 grams, 99 mm
From a Lincolnshire, UK, collection.
From a Lincolnshire, UK, collection.
.jpg "Polished Fossil Coral Heart Palm Stone")
Sold for (Inc. bp): £39
Cut to a heart shape and polished to reveal the internal structure. 114 grams, 68 mm
From a Cambridgeshire, UK, collection.
From a Cambridgeshire, UK, collection.
.jpg "Saint-Severin LL6 Chondrite Meteorite Slice")
Sold for (Inc. bp): £442
A cut and polished slice with inked find location to the edge; in a Swiss membrane box with aluminium identification label and dealer's card. 27.12 grams, 55 mm
Found Charente, France.
Ex Robert Haag collection, Tucson, AZ, USA.
From a Leicestershire, UK, collection.
Found Charente, France.
Ex Robert Haag collection, Tucson, AZ, USA.
From a Leicestershire, UK, collection.
Sold for (Inc. bp): £26
Comprising a Goniatite sp. and a Orthoceras sp. set on a freestanding textured matrix. 946 grams, 15.9 cm
From Atlas Mountains, Morocco, North Africa.
From a Cambridgeshire, UK, collection.
From Atlas Mountains, Morocco, North Africa.
From a Cambridgeshire, UK, collection.
Sold for (Inc. bp): £7
Comprising two matrices with a Petraster sp. specimen on each with some other fossil remains. 660 grams total, 13-13.6 cm
From a Cambridgeshire, UK, collection.
From a Cambridgeshire, UK, collection.
Comprising five necklaces, each with graduated mainly tubular amethyst beads with floral gold-coloured spacers, three with a tabular centrepiece; restrung. 385 grams total, 57-73 cm
Ex property of a West London gentleman; his collection formed in the late 1980s-early 1990s.
Property of a Californian, USA, collector.
Ex property of a West London gentleman; his collection formed in the late 1980s-early 1990s.
Property of a Californian, USA, collector.
Sold for (Inc. bp): £13
Comprising two Otodus obliquus teeth on individual matrices. 705 grams total, 10.3-14.3 cm
From a Cambridgeshire, UK, collection.
From a Cambridgeshire, UK, collection.
Page 192 of 296
2293 - 2304 of 3546 LOTS
2293 - 2304 of 3546 LOTS
