This is a collection of bindings removed from manuscripts held in other collections, there are currently 47 digitized of the 626 elements in the collection. Most of these were removed from their original sources, both manuscript and printed, during rebinding and restoration work conducted under the pontificate of Leo XIII (1878-1903). Where the original manuscript is known, it is made part of the binding shelfmark, eg. Legat.Pal.lat.930 was the originally a binding for Pal.lat.930, the "Older Worms Letter Collection".
Biblioteca apostolica vaticana. (2011). Guida ai fondi manoscritti, numismatici, a stampa della Biblioteca vaticana. Biblioteca apostolica vaticana. pp. 433-434