How old is a john Spencer London piano serial 65965?

To determine the age of a John Spencer London piano with the serial number 65965, you'll need to reference a serial number chart specific to that brand. Generally, pianos from the late 19th to early 20th century can date back to around the 1880s to 1920s. If this serial number falls within that range, the piano would likely be over 100 years old. For a precise year, consulting a piano expert or a detailed serial number database would be beneficial.