The monuments of Christian Rome from Constantine to the renaissance (1908)
Frothingham, Arthur L. (Arthur Lincoln), 1859-1923 · New York : The Macmillan company · leaf 40
and in front of it a double line of twelve superb spiral columns, supporting architraves with sculptures. In the apse was a mosaic of Christ and the two princes of the apostles Paul and Peter. Constantine's inscription on the areh read, addressing Christ : — BECAUSE, LED BY THEE, THE WORLD… … S. Peter (Old Basilica). atrium was paved, a mosaic was placed on the facade at the expense of the ex-prefect Marinianus (c. 450) ; and two palaces w e re built to flank the atrium. At this early date the aisles were not, as later, filled with altars and chapels, but the ba- silica was surrounded…
Art · Christian art and symbolism
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.