Yamaha U3H 1975，序列号 2029974，已售

Yamaha, U3, full front view in the showroom

Yamaha, U3, right side lower cabinet and front leg close-up

Yamaha, U3, right side keyboard and polished cabinet detail

Yamaha, U3, Yamaha logo and keyboard close-up

Yamaha, U3, left side keyboard and polished cabinet detail

Yamaha, U3, left side lower cabinet and front leg close-up

Yamaha, U3, model mark U3 H and serial number 20299xx inside the piano

Yamaha, U3, felt hammers and action components close-up

Yamaha, U3, internal action mechanism with dampers and levers

Yamaha, U3, lower internal action and lever mechanism close-up

Yamaha, U3, soundboard, iron frame and strings inside the piano

Yamaha, U3, three brass pedals close-up