1949 model, probably a "standard" which meant no rack or tank, very much like mine. Yes that pic was a slight match, but that doesn't mean that is the bike was unfortunately. Columbia made a a LOT of bikes and like Murray or Huffy, they also made them for others too.,,,,BD
The clearer picture. Different forks?
http://www.nostalgic.net/pictures/447.htm
HEre's a 48 model with a different kickstand mount, and different dropouts they make a point of showing. I don't
think they would have gone back to rear facing. That still makes me think it's older. The serial number is a possibility
for 1963, but they had moved on to another frame style I believe.
http://www.nostalgic.net/pictures/742.htm