Calcutta School, c.1800 A Pair of Koels numbered '401' and '402' (the first l.l., the second l.r.,), both inscribed l.c., the second with an indistinct inscription in Latin l.r., pencil, pen and ink and watercolour, heightened with bodycolour, the first with watermark 'J WHATMAN', the second with Strasburg lily both 47.3 x 32.1cm (2) Provenance: Christie's London, 'Watercolours and Pictures of Birds', 30 September 1997, lot 18.