Here's how to determine the age based on the serial number:
1. Serial Numbers Starting with "I" or "II": Serial numbers starting with the Roman numerals "I" or "II" followed by a hyphen typically date back to the late 1800s to early 1900s.
2. Serial Numbers Starting with Five Digits: Serial numbers that begin with five digits followed by a hyphen generally correspond to pianos produced between 1915 and 1925. For instance, a serial number like 12345-XX would indicate a piano from this era.
3. Serial Numbers with Prefixes: Some Lindenberg pianos have serial numbers that include a prefix, such as "W" or "X." The serial number may follow the format "Prefix - Five-Digit Number" and was commonly used between the late 1800s to early 1930s.
4. Serial Numbers Starting with "L" or "LP": Serial numbers beginning with the letters "L" or "LP" followed by a hyphen and a five-digit number were utilized from the mid-1920s to the early 1940s.
5. Serial Numbers with Four Digits: Four-digit serial numbers generally relate to pianos produced in the mid-1940s to the late 1950s.
It's worth noting that the serial number alone may not provide a precise date of production, as there might have been variations in the numbering sequence over the years. For a more accurate assessment of a piano's age, it's advisable to consult with a piano technician, who can examine the piano and consider additional factors such as design, construction, and other markings.