Carl Julius Gebauhr (d. 8 May, 1881) was a German Muggle who began producing pianos in Königsberg in 1834. The Granger family owned one of these instruments.
Carl Julius Gebauhr (d. 8 May, 1881) was a German Muggle who began producing pianos in Königsberg in 1834. The Granger family owned one of these instruments.