Guys,
I was poking around the internet the other day and plugged in "C19SR" to see what was out there. Lo and behold up popped the elusive circuit breaker and resistor circuit that I had given up on, and finally cobbled one together. Obsolete Automotive of Vinton, West Virginia has a stock of these NOS components should anyone else be looking for one.
Just got mine today, I continue to be impressed how these parts were packaged. Seventy plus years and it looks brand new. Needless to say it will be going on the Lynx.
Peter