Blüthner style VII with original signed receipt by Julius Blüthner - Piano Restorations
The Blüthner – Clay & Bone
Piano - Wikipedia
One of the most unique pianos I've ever heard. This is a restored 1890's Bluthner with a 4th resonating string! Check out comments for more pictures. : r/piano
Bluthner Aliquot Baby Grand - musical instruments - by owner - sale - craigslist