Need help identifying a boat

I am trying to identify a boat. Can anyone tell me what this boat is?
http://www.lslfire.com/sander/sailboat.jpg
http://www.lslfire.com/sander/sailboat2.jpg
http://www.lslfire.com/sander/sailboat3.jpg
http://www.lslfire.com/sander/sailboat4.jpg

Someone told me to ask the Cal, Pearson, Columbia, Islander, and Hunter owners.
I was told by the seller that it's a 1972 Ericson 22, but that isn't right, because I checked with several Ericson owners.

Any help would be greatly appreciated.
Have a wonderful day.

Thanks,