Figs. 1 and 2 are the plan and elevation of a small two-light window in the Decorated style (1300-1400), with a tracery head. The size of the sill is 12 in. by 9 in.; it is weathered and stooled, and also holed to receive two saddle bars. These are of 5/8-in. wrought-iron. finished with trefoiled heads as shown, and there are also to each window three horizontal bars, all of uniform size. The jamb stones, averaged, are 12in. by 9 in., splayed and sunk as on plan, and the splayed mullion dividing the two lights is 9 in. by 4in. The radiating arch stones are of the same section as the jamb stones, but are rebated to receive the tracery head. A 3-in. moulded hood with returned ends is turned over the arch as shown. Fig. 3 shows the method of obtaining the centres and centre lines for the tracery head by means of an equilateral triangle; A A A A show the centres for the tracery, and B C the centres for the window arch.

Fig. 2.

Fig. 1. Design for Small Tracery Winlow.