The diary  includes one of Constants works (Portret van een vrouw, 1982, aquarel, 64 x 53 cm. Collectie Rabobank.). On the same page is also, what seems to be, a flyer of Gallery Delaive, an aquarel of Constant (Woman with dog, 2001, watercolour on paper) is on the front. In pencil someone has written: 'Aquarel gekocht door Thomas Doebele'.