Turbā an-Naǧmīyyā: Interior

 

The four large arches spring from the level at which the masonry changes from large to small stones and are completed in brick. Within the recesses formed by the large arches are four small pointed arches, entirely of brick, built up against the monolithic lintels of the door and the three windows. The tympana above the lintels and behind the small arches are filled with brick. 

At the top of the stone cube is a corbelled course of brick, missing in many places, from which the arches of the lower zone of transition spring. The squinches of the lower zone of transition begin with a course of stones placed atop the corbelled brick course.

The upper zone of transition springs from another corbelled brick course. The gored dome begins in similar fashion. 

The pavement is probably lost, and while there may have been a dado, that is lost, too. 

The muqarnaṣ cornice is composed of repeated units, which here run into a broad horizontal band. These units are composed of small muqarnaṣ cells supporting much taller split cells set back-to-back. 

Ernst Herzfeld. Damascus, Studies in Architecture III. Ars Islamica XI-XII 1946 (p. 1-71).

Terry Allen. Ayyubid Architecture. Solipsist Press, Occidental, California, 1999.