It looks like a Shark to me but I’m not a Western aficionado to know if there was another model that was similar to it. Here is the knife, picture taken today. There is a story I heard when I was about 7 that it was used on an enemy on Okinawa. I heard that story only one other time the day he gave me that knife. After WWII, he used it on Caribou, Moose and fish in Alaska, countless deer and antelope in Montana and gave it to me in 1997. I’ve used it on Moose, Bear, Deer, Elk, Antelope since then. The last being a little Idaho Whitetail my daughter took last year, 2 days after Grandad died at 102. I figured it was fitting for his knife to be used.