1984
The singer sewing machine with a serial number AD588457 was 1933, model 15. Made in Elizabeth, NJ.
According to the Singer site it was made in 1925. It also looks like it was made during the first half of that year. This year the serial numbers AA817511 to AA 999999 were made. I can't say what country this machine was made in.
Your Singer Model 301A sewing machine was manufactured in 1953 at Anderson, South Carolina.
Im not 100% sure but my manual was printed in 1980
ED-942.977 to ED-999.999: made in 1947.
Singer 401A was manufactured in 1957 at Anderson, South Carolina.
My Singer 477 Instruction Manual has a date of 1968 on it...that may help.
I have this sewing machine and after doing some research on the internet I found out it was made in 1938, in Elizabeth, N.J. 10,000 were distributed. I found a singer web site that can help you rate your machine. Hopefully this is helpful.
Machines numbered AB-000.001 to AB-424.850 were made in 1926.
It was manufactured in 1957 in Great Britain.
According to Singer's website it was 1936 Model Year
It depends on the singer him or herself, it can be any reference year