This link looks good.
http://www.mercurystuff.com/1963-gal...-canadian.html
As far as I can tell, the 1BB is defined as 1= single color overall and BB= Raven Black.
The 614 is a red color trim. CA is for 223 6-cylinder. The serial is the linear number. For 662B the 6= 6-cylinder and 62B is for Galaxie 2-door sedan body type. 63 is the year and L is for left hand drive.