The monuments of Christian Rome from Constantine to the renaissance (1908)
Frothingham, Arthur L. (Arthur Lincoln), 1859- · New York : The Macmillan company · leaf 169
was often overhung by a propylon, or ante-porch, anarrow porch which had normally the form of a single pro- 158 CLASSIFICATION OF THE MONUMENTS jecting arch supported on a pair of columns standing free fromthe wall and supporting a pair of architraves which rested attheir wall end on pilasters or…
Art · Christian art and symbolism
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