Köchel catalogue Anh. A have been identified since 1965 as by Leopold Mozart. Many works in Anh. C have since been more reliably assigned to other composers, or to Mozart himself. To maintain as much of the original K-numbering of the list as possible, while re-ordering in the revised, chronological sequence, letters were added to the new numbers. The following list shows Köchel's original designation (K) and the sixth edition (K). Other addenda and supplements to the catalogue are marked "." (This has been abbreviated to 'Anh.' in the list below.) Works listed as composed for piano were most likely performed on
K. Rudzki i S-ka K. Rudzki i S-ka K. Rudzki i S-ka (Konstanty Rudzki & Co. Ltd.) was a Polish engineering and machinery company. Founded in Warsaw in 1858 as an iron foundry by a shipbuilding magnate Andrzej Artur Zamoyski and led by Konstanty Rudzki, it soon expanded into machinery, steel and engineering. By the end of the 19th century the company, with its seat in Warsaw and a large factory in Mińsk Mazowiecki, had become one of the largest and most experienced bridge construction contractors in Central and Eastern Europe, with roughly 20% of bridges constructed in the Russian Empire bearing the logo