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Wooden coasters in a wooden upright piano
 
 
Vintage miniature wooden upright piano, commonly produced in the mid-to-late 20th century (often made in Japan or Taiwan).
 
This specific design functions as a hidden tabletop coaster holder, where the top lid lifts up to store a set of 6 cork-lined coasters. 
 
These coasters have measurements of 11.3cm x 8.9cm, and a thickness of 0.7cm. There are six of them. The round coaster section has a diameter of 7.4cm. The metal handle pulls out of one of them. 
 
The piano is made of wood and measures 8.7cm in depth, 14.5cm in width and 11.4cm in height.
 
The piano keys are plastic.
 
It is in good vintage condition. It has some scratches and marks. The coasters are in good condition with the pattern well-preserved. There was a sticker or something on the music holder portion of the piano.
 
The top surface is the same colour as the rest of the piano. The reflection of light is showing in the photos.