Johann Matthäus Keuffel, Grotrian, Helfferich, Schulz, Th. Steinweg Nachf. GmbH & Co, fortepianos (salon concert grand), mahogany, spruce, maple, wood, Total: Length: 2110 mm; Width: 1520 mm; Height: 995 mm (instrument); Height: 360 mm (sides), Inscription: on the inside of the keyboard cover: Grotrian, Hellferich, Schulz, Th.

- Image ID: 2DNT1N7
Johann Matthäus Keuffel, Grotrian, Helfferich, Schulz, Th. Steinweg Nachf. GmbH & Co, fortepianos (salon concert grand), mahogany, spruce, maple, wood, Total: Length: 2110 mm; Width: 1520 mm; Height: 995 mm (instrument); Height: 360 mm (sides), Inscription: on the inside of the keyboard cover: Grotrian, Hellferich, Schulz, Th. Stock Photo
Johann Matthäus Keuffel, Grotrian, Helfferich, Schulz, Th. Steinweg Nachf. GmbH & Co, fortepianos (salon concert grand), mahogany, spruce, maple, wood, Total: Length: 2110 mm; Width: 1520 mm; Height: 995 mm (instrument); Height: 360 mm (sides), Inscription: on the inside of the keyboard cover: Grotrian, Hellferich, Schulz, Th. Stock Photo

Johann Matthäus Keuffel, Grotrian, Helfferich, Schulz, Th. Steinweg Nachf. GmbH & Co, fortepianos (salon concert grand), mahogany, spruce, maple, wood, Total: Length: 2110 mm; Width: 1520 mm; Height: 995 mm (instrument); Height: 360 mm (sides), Inscription: on the inside of the keyboard cover: Grotrian, Hellferich, Schulz, Th.

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Image ID: 2DNT1N7

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