upright piano

Classification: 3 Chordophones / 31 Simple chordophones or zithers / 314 Board zithers / 314.1 True board zithers / 314.1-4-8 True board zithers sounded by hammers or beaters, with keyboard

Piano maker: Koischwitz Bracia (Karol i Ryszard?)

Date: ca. 1900

Village / Town: Łódź

Country: Congress Kingdom of Poland / present-day Poland

Owner: Museum of Industrial History, Opatówek, ul. Kościelna 1. Bought in 1988 from Kazimierz Gryszkiewicz from Pruszków (owned by the family since the 1920s-30s)

Inventory number: MHP 20/I

Description: black polished. Cross-, single-, double-, triple-strung. Full metal frame with hitch pin block’s armour. English sticker repetition action with underdampers

Inscriptions: on the keyboard cover a square nameplate inlaid in brass reads: GEBR. KOISCHWITZ / LODZ; 671 on the hitch pin block; J. Keller & Co. Stuttgart nr 65290 stamped on the action frame; the casing’s back features a paper sticker with the number 671 and a factory stamp stating KOISCHWITZ LODZ. / PIANOFORTE FABRIK

Measurements: height 1455, width 1615, depth 395 (690) mm

Materials: wood, metal, ivory

Keyboard compass, stops: A₂-a⁴ – 7 octaves, two pedals – piano and dampers

Catalog card by: Benjamin Vogel

Bibliography: B. Vogel, Fortepian polski. Budownictwo fortepianów na ziemiach polskich od poł. XVIII w. do II wojny światowej, (Warszawa, 1995), pp. 236-37; B. Vogel, Polskie fortepiany XIX-XX w. Kolekcja Muzeum Historii Przemysłu  w Opatówku, (Opatówek,1994)

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