It is difficult to determine the exact value of an old Singer sewing machine without more information about the specific model and its condition. Singer sewing machines were produced for over 150 years, and there are many different models that were produced during that time.
The value of an old Singer sewing machine can vary widely depending on its age, rarity, condition, and any additional features or attachments it may have. Some older Singer sewing machines may be worth a significant amount of money to collectors, while others may not be worth much at all.
To get a better idea of the value of your old Singer sewing machine, you may want to do some research online or consult with a sewing machine expert or antique dealer. Alternatively, you could try contacting the Singer Sewing Company directly to see if they can provide any information about your specific model.