Pianos Manufactured in South Haven, MI
| Year of Manufacture | Serial Number |
|---|---|
| 1974 | U101000 |
| 1975 | U102000 |
| 1976 | U107000 |
| 1977 | U110000 |
| 1978 | U117000 |
| 1979 | U124000 |
| 1980 | U132000 |
| 1981 | U141000 |
| 1982 | U150000 |
| 1983 | U160000 |
| 1984 | U167000 |
| 1985 | U174000 |
| 1986 | U186000 |
… since 1935