Tim,
I was able to find both a front and rear set of NOS Signal Stat turn signals by watching eBay. It took me about 18 months to find nice NOS sets. While waiting to find a nice NOS set I had been gathering up nice sets of pre 50s signals (Signal Stat, Dietze, Guide, Arrow Safety, etc.) and then restoring them to be either used or sold. I now do this as a winter project each year.
I sent you a PM also. - Bob