Storied windows : a traveller's introduction to the study of old church glass, from the twelfth century to the Renaissance, especially in France (1914)
Bushnell, Arthur J de Havilland · New York : Macmillan · leaf 42
Tympamm pierckd by a CisPKn Circlk mnkd with a Trkfoii.. … Transition from Geometrical to Flowing Tracery. Pointed Trefoilswith nct enclosing circles.
Glass painting and staining · Cathedrals
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
