Jack,
I just remember this one that came up on Bladeforums in February of 2009. It also is
very early 60's because of the choil cut. The Randall sheath logo is West facing and are you ready for this? The keeper is horizontal! I think this one pre-dates the Heiser sheaths with the Randall logos that recently came up at auction:
Here's another
very early 60's 4-6 because of the choil cut (Bad pics - sorry). Again, West facing logo and middle of sheath retainer placement: