I just purchased a used Schafer and sons parlour grand piano originally purchased in 1991 for $12000. The owner sold it to me for $1600. My piano tuner advised me to purchase it after checking it out, said it was a great deal. I'm curious to find out more. It was designed by LS Design in West Germany and made in Korea. The numbers I'm finding inside are GO 24893, SS510. Additional information would be greatly appreciated.