Roman Bronze Horse Brooch

Comprising three lacquered porphyry slices of rectangular shape, cut on both faces and polished on one face; probably from recycled material mined in ancient Roman times between the 1st and 5th century A.D.; intended for use as inlay panels. 82.8 grams total, 7.2-10.1 cm



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

Mons Porphyrites (today Jabal Abu Dukhkhan) is the mountainous site of a group of ancient quarries in the Red Sea Hills of the inhospitable eastern desert in Egypt, a five day trip from the Nile during Roman times. They were discovered by Caius Cominus Leugas in 18 A.D., and during the Roman Empire the mines officially belonged to the emperor and were the only known source of the Imperial Porphyry, Mons Porphyrites. This dark purple stone was associated with royalty and used for prestigious sculpture and architecture. The location of the mines was lost some time in the 5th century, and rediscovered in the early 19th century. Excavations in the area have revealed the well-preserved quarries and the dwelling places of the quarry men, and also thousands of ostraca have been discovered containing messages that provide details of how the quarrying took place, and of how the highly skilled quarrymen ordered their food.

Modelled with thick body tapering to a curved divided tail; large dorsal fin above and two small ventral fins; dished recess to one side for attachment to a bowl; mounted on a custom-made stand. 9.5 grams, 64 mm including stand



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.

Ellipsoid cameo with profile portrait bust in gold pendant frame with surrounding cabochons: emerald, sapphire, ruby - and clusters of pearls; marked to reverse '750', in a rectangle 'B&G' (believed to be an upstate New York jeweller's stamp) and an indeterminate third mark; supplied with a custom-made display stand. 99 grams total, 92 mm including stand, pendant: 50 mm



American collection, early 20th century, New York. with Robert Haber Gallery, New York, 1990. Ex Jean Clostre, Geneva, Switzerland. Accompanied by an scholarly report by Dr Ittai Gradel. This lot has been checked against the Interpol Database of stolen works of art and is accompanied by search certificate number no.12223-222312.

Dr Ittai Gradel says: 'The cameo, of exquisite technical quality, has a close parallel in the Cabinet des médailles, Paris .. The Timeline auction cameo is not, however, an exact copy .. though details are so close to the larger Paris cameo that the same gem carver, or at least workshop, probably produced both.'