O6977 CI+ 20201019080000.0 Chopin, Fryderyk Franciszek AUTH49 Osoba nieustalona AUTH70 Impromptu As-dur op. 29 Paris (7008038) : 1839-1842 India ink (ink) GETTY:300015018 graphite (mineral) GETTY:300011098 machine-made paper THES42642 printing ink GETTY:300187371 32 cm x 25.5 cm engraving (printing process) GETTY:300053225 handwriting GETTY:300252927 stamping (marking) GETTY:300239001 PL-Wnifc Muzeum Fryderyka Chopina Narodowy Instytut Fryderyka Chopina MC/486