The following list of numbers represents the date of manufacture followed by the piano serial numbers. The letters ‘sn’ mean serial number.
Piano Manufacturer: Piano Manufacturer: Schiller
1950 sn-318000 1958 sn-342400 1966 sn-386000 1975 sn-425700
1951 sn-321000 1959 sn-345800 1967 sn-393000 1976 sn-429300
1952 sn-323000 1960 sn-350600 1969 sn-398000 1977 sn-434000
1953 sn-326000 1961 sn-355000 1970 sn-401700 1978 sn-437000
1954 sn-333000 1962 sn-360000 1971 sn-407300 1979 sn-443000
1955 sn-336500 1963 sn-365000 1972 sn-411400 1980 sn-448000
1956 sn-338000 1964 sn-372000 1973 sn-415900 1981 sn-451000
1957 sn-339200 1965 sn-379000 1974 sn-420700 1982 sn-455200
Piano Manufacturer: Piano Manufacturer: Schimmel
1900 sn-3500 1950 sn-22900 1965 sn-81000 1974 sn-144700
1910 sn-9000 1951 sn-23200 1966 sn-88200 1975 sn-152200
1915 sn-10400 1952 sn-24500 1967 sn-95500 1976 sn-159700
1920 sn-12700 1953 sn-26700 1968 sn-103000 1977 sn-168000
1925 sn-16800 1955 sn-31300 1969 sn-110600 1978 sn-180000
1930 sn-19350 1960 sn-50000 1970 sn-118200 1979 sn-192000
1935 sn-20900 1962 sn-60900 1971 sn-124800 1980 sn-204000
1940 sn-22100 1963 sn-66700 1972 sn-131600 1981 sn-216000
1949 sn-22600 1964 sn-74000 1973 sn-138200 1982 sn-230000
Piano Manufacturer: Schumann
1956 sn-160000 1959 sn-169000 1962 sn-180000 1965 sn-191000
1957 sn-163100 1960 sn-172000 1963 sn-183000 1966 sn-191800
1958 sn-166000 1961 sn-176000 1964 sn-187000
Piano Manufacturer: Schultz, M.
1907 sn-3500 1913 sn-80000 1919 sn-140000 1925 sn-190000
1911 sn-62000 1917 sn-120000 1923 sn-170000 1929 sn-226000
1912 sn-71000 1918 sn-130000 1924 sn-180000 1930 sn-230000
Piano Manufacturer: Seiler, Ed.
1900 sn-27799 1940 sn-81100 1960 sn-86100 1975 sn-104000
1910 sn-43419 1945 sn-82500 1962 sn-88000 1976 sn-108000
1915 sn-50755 1950 sn-82526 1963 sn-89000 1977 sn-110000
1920 sn-53671 1951 sn-82526 1964 sn-90000 1980 sn-116000
1925 sn-61632 1952 sn-82700 1965 sn-95000 1981 sn-119200
1930 sn-71725 1953 sn-82800 1973 sn-100005 1983 sn-122200
1935 sn-75503 1955 sn-83000 1974 sn-102000 1985 sn-125200
Piano Manufacturer: Settergrin, B.K.
1956 sn-160000 1959 sn-169000 1962 sn-180000 1965 sn-191000
1957 sn-163100 1960 sn-172000 1963 sn-183000 1966 sn-191800
1958 sn-166000 1961 sn-176000 1964 sn-187000 1967 sn-192000
Piano Manufacturer: Shoninger
1950 sn-21000 1952 sn-25000 1954 sn-28500 1958 sn-35200
1951 sn-23000 1953 sn-27000 1956 sn-31500 1960 sn-37000
Piano Manufacturer: Sohmer
1900 sn-27800 1945 sn-97260 1966 sn-159600 1975 sn-203500
1905 sn-32300 1950 sn-103240 1967 sn-164700 1976 sn-209100
1915 sn-42900 1960 sn-132500 1969 sn-175000 1978 sn-220430
1920 sn-48100 1961 sn-136700 1970 sn-180000 1979 sn-226250
1925 sn-60750 1962 sn-140840 1971 sn-183600 1980 sn-231700
1930 sn-76500 1963 sn-145260 1972 sn-187800 1981 sn-236570
1935 sn-86400 1964 sn-150200 1973 sn-191074 1982 sn-241180
1940 sn-92100 1965 sn-154500 1974 sn-198900
Piano Manufacturer: Starck, P.A.
1960 sn-158800 1962 sn-169000 1964 sn-183000 1966 sn-207000
1961 sn-163000 1963 sn-176000 1965 sn-195000 1967 sn-219000
Piano Manufacturer: Sojin
1982 sn-035080 1984 sn-055778 1986 sn-082675 1988 sn-118058
1983 sn-044668 1985 sn-068207 1987 sn-100560 1989 sn-142058
Grand Pianos * Serial Numbers Preceded By A G.
1983 sn-10201 1985 sn-12693 1987 sn-17757 1989 sn-26269
1984 sn-10993 1986 sn-14703 1988 sn-21269 1990 sn-32269
Piano Manufacturer: Soward
1956 sn-160000 1959 sn-169000 1962 sn-180000 1965 sn-191000
1957 sn-163100 1960 sn-172000 1963 sn-183000 1966 sn-191800
1958 sn-166000 1961 sn-176000 1964 sn-187000 1967 sn-192000