dive knife swimaster vintage

Description

in 1989, 33 years ago!, I was diving from a boat off Grand Cayman Island. we were snorkeling over a coral reef with a tank dive scheduled for that afternoon.
most of the dive was in 30 feet of water, but I was out on the edge of the reef at about 50 feet, the dive master was calling us in, and there, far below, laying on top of the coral head was this knife. I went down and got it, and I’ve had it ever since, but now is the time to sell it.
Of course, there is no sheath, (and a rubber sheath would not be fit for use due to age.)
this knife is heavy, over a pound and 13 inches long. there are no nicks in the blade. You may return it if you are not satisfied for refund of the purchase price (within 30 days) if you pay the shipping.