Tool utilized as a large sieve to eliminate the solid lumps of the Lime Mortar. Giacinto Carena (1853) describes it as a "large strainer, quadrangular, oblong, wooden with a perforated bottom, that is a net of iron threads, or formed in iron rods, parallel and close together in order for the lime mortar to pass through, where the small stones and other refuse are separated. The colander, if large, lies horizontally on four small pilasters of only a few dry bricks: if small it is raised on one of the less important sides, and held with a stand: it is against the perforated bottom where the worker places heaps of lime mortar, or other similar cement."