Köchel catalogue Horn Concerto No. 1, K. (412+514)/386b. In the decades after Mozart's death there were several attempts to catalogue his compositions, for example by Franz Gleißner and Johann Anton André (published in 1833), but it was not until 1862 that Ludwig von Köchel succeeded in producing a comprehensive listing. Köchel's 551-page catalogue was titled "Chronologisch-thematisches Verzeichnis sämmtlicher Tonwerke W. A. Mozarts" ("Chronological-thematic Catalogue of the Complete Musical Works of W. A. Mozart"). Köchel attempted to arrange the works in chronological order, but many compositions written before 1784 could only be estimated, although Leopold Mozart had compiled a partial list of his
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