Seaplane raises the most significant point in this discussion.
With various discussions going on, I am not sure what knife is being talked about at any given time. I do know that the pictures of the knife that was the subject of the initial inquiry shows it to have a stainless steel rocker rivet. If Joes data sheet is correct ( and I tend to believe that he is usually correct) and since the first 110 that he lists as having a stainless rocker rivet is a Fifth Version, Variation 2, it seems improbable that the knife is earlier than a fifth version.
Telechronos

