Here is an interesting knife, possibly a contemporary to the odd-ball metal-snap sheath. It has a horizontal Randal-made stamp (possibly a marker for late '59, early '60), a metal snap on the keeper, and a brown-button plastic snap on the hone pocket that has taken black dye. Of note, the "odd-ball metal snaps" seem to have a hexagonal shape whereas this one seems to be round.

But.. this does probably confirm that Randall shop could set metal snaps into presumably Heiser-made sheaths during this time, and that metal snaps were used by the shop on occasion before the beginnning of the baby-dot era.