Wolfgang Amadeus MOZART. *La Clemenza di Tito*. Grand Opera reduced to quartets for two violins, viola, and bass, [KV 621] (Vienna, Artaria and Co., [1798]); folio, title page and 65 pages, in 4 booklets (title page and cover slightly soiled, and a small tear at the top of the last folio). First edition, complete with all 4 parts, with the first violin part bearing the title. Catalog number 782. Ex libris signature “Jg Wagner.”