- Serial Numbers Starting with "W" (1852-1910):
Weber pianos with serial numbers beginning with the letter "W" were manufactured between 1852 and 1910. The serial number typically consists of four digits. To estimate the year of manufacture, add 1851 to the first two digits of the serial number. For example, a serial number of W2345 would indicate a manufacturing year of approximately 1874 (1851 + 23 = 1874).
- Serial Numbers Starting with "X" (1910-1965):
Weber pianos with serial numbers beginning with the letter "X" were produced from 1910 to 1965. The serial number usually consists of five digits. Similarly, to determine the year of manufacture, add 1909 to the first two digits of the serial number. For instance, a serial number of X12345 would suggest an approximate manufacturing date of 1921 (1909 + 12 = 1921).
- Serial Numbers Starting with "A" or "B" (1965-1982):
Weber pianos with serial numbers starting with the letters "A" or "B" were manufactured between 1965 and 1982. The serial number format is similar to the previous ones, consisting of five digits. To estimate the year of production, subtract 1919 from the first two digits of the serial number. As an example, a serial number of B23456 would indicate a manufacturing date of approximately 1947 (23 - 19 = 1947).
It's worth noting that Weber may have used overlapping serial number ranges or slightly different numbering systems during certain periods. Therefore, if you have a specific serial number and want a more precise dating, it's advisable to contact Weber directly or consult with a reputable piano technician or historian specializing in Weber pianos. They can provide a more accurate estimate based on the specific characteristics and features of your instrument.