The Yamaha U1G, like the Yamaha U1F, was only built for 1 year, from 1971 to 1972. It is otherwise similar to the U1F, but is called the same version as the current U1. Our refurbished Yamaha pianos & grand pianos are like new instruments again. Both the inside and outside have been overhauled. The cabinet has been painted with polyester high-gloss lacquer, the key tops have been replaced, the soundboard has new lacquer, and even the inside is in new condition. Partly because of this, we give another 10-year warranty on these instruments.