Beshoy Ramzy, a reader of my blog, was kind enough to send me the catalogue of the Coptic manuscripts in the papyrus collection in Berlin, prepared by the late Walter Beltz. The catalogue was published in two parts in Archiv für Papyrusforschung (in 1978 and 1980). It contains the manuscripts on papyrus, parchment and paper, but also the ostraka:
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