Euclid's geometry

This book by Euclid is being sold at Bonhams in London on March 27. It is expected to fetch £2,000. Here is the catalogue description.

The First Six Books of the Elements... coloured Diagrams and Symbols are used instead of Letters...by Oliver Byrne, printed in black and colours throughout, some foxing, Lord Aldenham's copy with his signature and the Aldenham House bookplate, contemporary calf, gilt, g.e, 4to, William Pickering, 1847