was followed by the present failure of the lower join; on both occasions
these failures were caused by the rigid fixing of the panel into the frame.
Regular nicks on the sides of the reverse of the panel, cut for fixings, can
beseen (Fig. 7).
An unthinned panel ofapproximately 1540, Portrait ofa Man with
a Watch(Science Museum, London), attributed to the Florentine painter
Maso di san Friano, has regular V-shaped nicks along the top and bottom
ofthe rev erse of the panel where nails have secured it to the frame. There
is no evidence of similar fixings along the sides. The panel has developed a
conve x warp, greatest in the center of the panel, between the dovetailed
battens, set into channels (Fig. 8).T F W P 437Figure 6
Dutch school, Church Interior,mid–seventeenth
century. Oil on oak panel, 89.2 3 120.8 cm.
Grimesthorpe Castle, Lincolnshire, England.
Figure 7
Dutch school, Church Interior. Reverse before
removal from the frame.