The method of using plaster nails for fixing the mansion of Morteza Gholi Khan Egbalosaltaneh, the commander of Maku, in Qajar period was purposed. These paintings are important for art researchers since it is the beginning of a kind of innovation in Iranian art in Gajar period (Fig. 1). The western elements have been used in the interior design of the mansion and the execution of interior decorations such as the spaces colors and the most delicate arrangements in architectural ornamentations in terms of painting in the interior and exterior spaces (Table 1). The techniques of making painting layers in Qajar period have been employed in this monument which supporting layer, liners, the substrate and material layers are aligned with the same period historical houses resulted during the comparative studies (Fig. 2). . . .