Hi McDave,
We may be the only two Schroder owners in the US. I have a blue 58cm, I am the second owner. It was raced in the 70's by Bob Peoples in So. Cal. I used it for a few road races until I bought a Pinarello and then the Schroder became a commute bike with heavier wheels and tires and a Shimano 600 stuff to replace all the Campy stuff I could salvage for the Pinarello frame.
Mine has Reynolds 531 tubing. It's presently on the ceiling of the garage, and it's been there almost 20 years.
I wanted to do some searching about the maker because I want to get it down and let it go to a better home.
I can take some photos if you would like to see it, but the downtube sticker looks the same as yours.
Did you fix yours up?
I thought about making it a fixie, but I waffling on that one.
Regards to you,
John