Portrait of Gregorio Leti (1630-1701) vehicle watches Jayne Torvill and Christopher

watches Jayne Torvill and Christopher Dean perform their Paso Doble routine

Measured drawing

Tycho Brahe's equatorial armillary sphere ('Armillae aequatoriae') in his Uraniborg observatory on the island of Hven

and gnawing a bone is Alderman Henry Winchester

by Sir John Ross (London

Portrait of Gregorio Leti (1630-1701) vehicle watches Jayne Torvill and ChristopherHead and shoulders portrait of Leti in a shoulder length dark curled wig, enclosed in an inscribed oval frame surmounted by a coat of arms with the motto 'Non Lethum Leti' and decorated with acanthus. The main frame inscription reads: 'GREGORIUS LETI HISTORICUS AETAT 58 Ao. 1689'. Inscribed lower right: 'J Gole Sculp.' In pencil, lower left: '1681' Gregorio Leti was elected a Fellow of the Royal Society in 1681. Original: line engraving. 1690s