by Ian McKay
A spread from the copy of Luca Pacioli’s Summa de arithmetica… sold by Christie’s in New York for $1m (£775,195).
Published in Venice in November 1494, a copy of Luca Pacioli’s Summa de arithmetica, geometria, proporzioni et proporzionalità… offered in a recent US sale was granted the rare privilege in the book auction world of having a catalogue all of its own.