From what I see and hear from these last posts I'm on board with this new theory. Sure there may be some exceptions and I'm convinced something must have happened at Heiser for the quality to dip towards the end of their sheath making era. It fits nicely with Gary Randall meeting Johnson in 1962 and it also does not suggest another sheath maker had a major role during this time. Thanks for the posts and I enjoyed this very much.

Gary