O.K....it looked a bit strange....it appears that someone has removed some of the material between the finger grooves....quite a shame as it is a "filled hole" micarta handle....somewhat rare, however with the modification, just about all the collector value is gone...a very nice knife...
It's is a model 16....what's interesting about your knife is the handle....I'd need to see better photo's....
go to this site.....you will find all the answers, by all the brightest Randall minds!!
http://www.knifetalkforums.com/ubbthreads.php?ubb=cfrm
I lost a set of keys to my 1983 ford pickup....it doesn't sound like that big of a deal, however they were the original aluminum set.....drove me crazy for a couple years!!! found them, finally, in a pocket of a pair of shorts I hadn't obviously worn in a while...
nice to find lost stuff....