Looking for info related to tanto point vintage Buck model 187

[Sealboy]

I have a large Buck knife that I assume was a presentation knife. It in brand new looking condition. I purchased the knife in about 1992 in Anchorage at a pawn shop. I lost the letter that went with the knife including the name of the Seal it was according to the letter's information given to. I have not been able to find a picture of the knife except one with a chisel point, and would appear to be a diver's work knife. As mentioned mine has a tanto point and an what appears to be an added on Seal logo. Can anyone help with additional info? I am also glad to be a new forum member and will always help with information or my opinions) TY