The city of Deventer has two museums, the Speelgoed en Blikmuseum (toy and tin museum) and De Waag, the former weigh house, now the historical museum. In 1982-1983, the toy and tin museum was established in two adjacent monuments just restored and in 1987-1988 the restoration and alteration of De Waag (dating from 1528, a museum since 1913) took place. In both cases, only a modest budget for equipment was available. Both the good and bad experiences from the first job were of use in the second. There was good cooperation between the architect, the Central Research Laboratory's advisor, and the museum staff. Faults in the light equipment of the toy and tin museum were the light sources fixed upon showcases and the adhesion of a ultraviolet-absorbing coating on the windows (the coating lost its function within six years). In De Waag, a combination of concealed background lighting (via the ceilings) and direct lighting by spotlights has been designed. All lights are controlled from a central panel, inaccessible to the public. The showcases are glass or perspex and are illuminated from outside by spotlights. Daylight is reduced by double glazing of ultraviolet-absorbing acrylic panes. Where it is needed, an extra shielding of cheesecloth is applied.