A rare and unique William IV period sketch book by Mary Cowper dated 1831, over 50 exquisite coloured watercolour paintings and drawings of figures, flowers, insects, fish, birds and landscapes, many signed and dated - including The Emperor and Empress of China, Chinese boat, Duck boat, Chinese bird catchers, stag beetle, praying mantis, scorpion, passionfruit flowers, Roman gladiator, etc. - most in excellent original condition. The gilt tooled dark red leather covers with some distress