Bruce Wittet wrote this in a review that he published about the Swivomatic pedal. I ordered my first Swivo pedal with the Rogers set that got in the Summer of 1961. The Camco pedal was offered before, during, and after the Swivo pedal was introduced.
"Rogers Swiv-o-matic: Among the top 10 bass drum pedals, current or past. Still modern as the day it was new.
Designed in the late 1950s and introduced in the Rogers 1960 catalog, The Rogers Swiv-o-matic Bass Drum Pedal was the first identifiably modern pedal, meaning that it debuted all of the features we see on today’s pedals but in a lighter weight, bullet proof unit.
Thoroughly modern Swivo
The Rogers Swiv-o-matic pedal featured perks other pedals didn’t, or couldn’t, offer. It did so without heaping structure upon structure like condo upon condo in an inner city heritage property".