Bottom Structure Of An Upright Piano: Pedals, Metal Frame With Strings, Bass And Treble Bridges. Stock Photo, Picture And Royalty Free Image. Image 55040479.
The harp of an old upright piano | Piano decor, Repurposed furniture, Old pianos
File:Demolition of upright Knabe piano cast iron string frame.JPG - Wikimedia Commons
KIRKMAN LONDON Vertical Iron Frame Piano | Habitat Stores Seattle-King County