ClipArt ETC
"A box for holding books among the Romans. These boxes were of cylindrical form. There does not appear to have been any difference between the capsa and scrinium, except that the latter word was usually applied to those boxes which held a considerable number of rolls. The slaves who had the charge of these book-chests were called capsarii, and also custodes scriniorum; and te slaves who carried in a capsa behind their young masters the books of the sons of respectable Romans, when they went to school, were called by the same name." — Smith, 1873;

Capsa

"A box for holding books among the Romans. These boxes were of cylindrical form. There does not appear…