I don’t get this Wavy Grover ‘thing’ . Two of my basses have wavy Grovers & IMO they are a poor design. It’s lucky that I don’t play in a heavy rock band any more as I don’t think the Grovers would survive more than a handful of gigs.
Are you sure they aren't Schaller's? I have a set of open-back Schaller's from the 70's that were a common mod for Ricks back then. They're really solid(and heavy). They have a prominent ridge down the middle of the keywind and large posts that require drilling the headstock holes out. I have definitely seen them in photos of Geddy Ricks in the past, but I can't tell so much in this photo.
On a second look at the photo...I see 1 inch spacing and what appears to be a raised-letter TRC, so I'm gonna say Schallers.
I had some open gear Grovers that looked a lot like the ones in above picture of Geddy. The Schaller pic posted by Jeff reminds me that I once had some like that too. I change my opinion to Schaller.
Grover's these days aren't bad though . . . probably because they don't make the same tuners. I'm using a set of Grover Titans on one of my basses, and they're just fine.