Der christliche Altar in seiner geschichtlichen Entwicklung: Arten, Bestandteile, Altargrab, Weihe, Symbolik
A German scholarly study by Joseph Braun, published in 1924 by Heidelberg University Library, tracing the historical development, types, parts, altar tombs, consecration and symbolism of the Christian altar. The pictures are photographs of medieval altars and altar frontals, showing carved and mosaic-inlaid panels, colonnaded sides with figure reliefs, interlace patterns, and inscribed stone with birds and ornamental bands. A designer might take from them the richness of early Christian and Romanesque ornament, including interlace knotwork, arcaded column rows, and inscribed tabletop panels.
