This piano was made in the 1930s, probably in the latter half of the decade.
476140
I have a Baldwin 621 piano with a different serial number and it was bought in 1988.
Hello, 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...
It was probably made in 1955.
1978