The Tucci Collection was in part acquired by the Museo Nazionale d'Arte Orientale in Rome. A major part of the collection was a group of about 200 <i>thankas</i>, the oldest of which has been dated to the 13th century. Many of these prayer hangings form series and share a common provenance. Some paintings are wholly or partially in their original <i>thanka gossam</i> (dress or exhibition frame) and are covered by light, gauzy, painted, or damask <i>than-kebs</i>. Many of the fabrics are very unusual; some are rare and date to the 15th century. The textiles were produced in China, India, Nepal, and Tibet. In 1984, the Museo d'Arte Orientale decided that a large part of this collection should undergo conservation treatment in preparation for a future exhibition. The paintings remained in Rome and are presently being conserved at the Museo Nazionale d'Arte Orientale, while the textiles were brought to Florence for treatment. This work should be completed at the end of 1988. The paper discusses documentation of the paintings and textiles, including the method by which the two were attached and their separation during conservation treatment; documentation of the various textiles, their condition and the way they were assembled; cleaning tests; cleaning procedures; consolidation, including mounting the textiles on fabric supports and consolidating with stitching, mounting between two layers of fabric, and consolidation with adhesives; problems of replacing missing areas; problematic old repairs; final reassembly of the <i>thankas</i> and mounting for exhibition. (See also <i>AATA</i><b> 26-527, 26-582</b>, and<b> 26-622</b> for related abstracts in this issue. ) -- AATA