CFL Helmet Design History Question

[dewline]

Longtime Saskatchewan Roughriders fan am I. And yet, for all I rack my brains, I cannot recall seeing even in 1960's archival footage and still photos a helmet with ye aulde "football, wheat stalks and ribbon" insignia on them such as we see at assorted Riders games this year. The not-so-old Spaulding-logo-derived "S" with laurel wreathing, yes. I remember that very well!

But not this design I've been seeing on TV on the Riders' "retro" suits this year.

How'd that happen? Anyone?