The Old Swedes' Church has a few rectangular windows with fifteen-and sixteen-paned upper and lower sashes, while over the front entrance there is a window having a twelve-paned upper and a[149] sixteen-paned lower sash. In Christ Church are to be seen two windows having ten-paned upper and fifteen-paned lower sashes set in a recessed round brick arch. For the most part, however, the church windows of this period were round-topped, the upper sash being higher than the lower. Most of the windows of St. Peter's Protestant Episcopal Church have fifteen-paned lower sashes, the upper sashes consisting of twenty rectangular panes above which twelve keystone-shaped panes and one semicircular pane form the round top.
The windows of Christ Church are larger still and particularly interesting because of the heavy central muntin to strengthen the sash. On the first story the lower sashes have twenty-four panes and the upper ones eighteen rectangular panes with sixteen keystone-shaped and two quarter-round panes to form the semicircular top. On the second floor the windows are the same except for the eighteen-paned lower sashes. Each side of the steeple on the lower story is a window of this size, notable for the ornamental spacing of twenty-one sash bar divisions, the sweeping curves of which form spaces for glass reminiscent of the Gothic arch.
These windows slide in molded frames set in the reveals of the brickwork under plain arches with marble or other stone imposts, keystone and sill. The imposts and keystone were often molded and[150] otherwise hand-tooled, as on Christ's Church, and the sills were sometimes supported by a console at each end, as on St. Peter's Protestant Episcopal Church. Some of the windows of both of these churches illustrate the frequent employment of slightly projecting brick arches and pilaster casings at the sides.
The great Palladian chancel windows of Renaissance churches were often much larger. Usually they were stationary, especially the central section, although sometimes, as in Christ's Church, the two side windows had sliding sashes. The central section of this window has ninety-six rectangular panes with twenty-four keystone-shaped and two quarter-round panes forming the round top. The narrow side windows have fifteen-paned upper and twelve-paned lower sashes. The treatment of this chancel end with heavy brick piers and pilasters, stone entablature, projecting brick spandrels and the bust of George II, King of England, between them, above the arch of the Palladian window, is most interesting.
The chancel window of St. Peter's Protestant Episcopal Church has one hundred and eight rectangular panes in its central section with twenty-eight keystone-shaped panes and a semicircular pane forming the round top. Each side of this end of the church, with four smaller round-headed windows ranged about the chancel window and a[151] circular window in the pediment above, is a superb example of symmetrical arrangement.
Although large and more ornate, the Palladian window above the entrance to Independence Hall on the Independence Square side is more like that found in domestic architecture. All three of its lower sashes are sliding. The central window consists of a twenty-four-paned lower sash and an upper sash with twenty-one ornamental-shaped panes forming the round top above twenty-four rectangular panes. The narrow side windows have six-paned upper and twelve-paned lower sashes. Owing to its good proportion, the chaste simplicity of the detail and the pleasing combination of brick pilasters with wood trim, this has been referred to by architects as the best Palladian window in America. The use of such a window in the Ionic order above a Doric doorway adds another to the many notable instances of free use of the orders by Colonial builders.