According to Pierce's Piano Atlas Baldwin pianos have no more than 6 digit serial numbers so maybe the poster has not got the right number. Some pianos have more than one number, but only one is the serial number.
Go to this website for a free listing of piano ages by serial numbers: http://www.bluebookofpianos.com/serial1.htm
According to their list, your piano was made between 1966 - 1973.
Check out this website, it gives you diagrams, and information on how to find the serial numbers on your piano. Good luck!
http://www.bluebookofpianos.com/serial.htm