I think one of these is a Speedway.

[smudvapor]

The add says two Rupp frames but the one looks like a Speedway to me.

https://columbus.craigslist.org/mcy/6180707722.html

 

[Ding Ding]

You are correct.

 

[1971_MB1A]

Looks like Speedway & Arco.