Sometimes in 1969, a company called E.D.R. Pro Line at 2103-A Ford Parkway in Sta Paul, MN, issued 1/24 scale slot car products, like a complete anglewinder chassis kit using a one-piece stamped-steel center section similar to those produced by Brady-Emott Enterprises (which apparenly was more Brady than Emott...,) Cobra, or Associated Electrics.
The kit even had wheels and tires, the fronts being Associated and the rears, inside a plastic tube, likely from the same company.
Later and at an undetermined time but likely not far after, it marketed other products such as blue sponge tires (1/8" axle) on setscrew wheels, chassis oilers and various other bits. On these later products, the markings are:
E.D.R. Pro Line
Steube Approved
Team Checkpoint
Now, I have never heard of this company in the day when I was myself a member of the famed team, and this until recently when we began finding various products from those guys, and was wondering if any of the old guard here, had any knowledge of those people, who they were and how did they get to call themselves "Team Checkpoint" and claimed "Steube approval" when there was indeed a Team Checkpoint based in Long beach and run by Bill Steube Sr.
Anyone know?
Here is a set of tires from that outfit:
Thanks for any help in solving this little mystery!