Source after maintenance. Dark-red cardboard cover and pages separating the musical text: added. Cover, side 2, bottom: sticker "Obiekt poddany konserwacji w 2009 r. ze środków | Ministra Kultury i Dziedzictwa Narodowego"; p. [1]: TP, title "Ignacy Feliks Dobrzyński | Symfonia nr 1 B_dur. Op. 11. | Wyciąg fortepianowy na 4 ręce | Rękopis. 1829 r.; p. [2-4] blank., Musical text p. [1]: TP; stamp with shelfmark olim "7532"; rectangular red stamp "Wartość muzealna"., One-sided numbering, Inside, on p. 2 of the cover: a program folder of the Wrocław Philharmonic concert on June 4, 2004 was added . In the program, among others: I Symphony in B flat major by I. F. Dobrzyński, Peformance by Wrocław Philharmonic Orchestra on June 4, 2004
