Pianos › Yamaha U1 #2050747 - POA Image 1 of 1 Yamaha U1 #2050747 - POA €0.00 Serial number #2050747:Price includes delivery to ground floor, 10 years guarantee and an aftersales tuning. Add To Cart Added! Serial number #2050747:Price includes delivery to ground floor, 10 years guarantee and an aftersales tuning.