starter relay issue

I pulled apart the most recent failed relay and it looks brand new inside....no broken or scored anything...nada

while at Ross's, HemiMark pointed to what looks like a flasher /relay mounted on the inner fender near the firewall and asked...what's that for?....I could not remember, but got to thinking that might be the issue. It could be part of the 1974 emissions (leaner burn) mandate and is messing with the timing/ electrical. Since the car had factory electronic ignition ...I used all the factory harness. It is not horn related. ....horn works when disconnected.

anybody know what it is and it's function?....from memory (and Margaritas at Ross's) 3 wires from it.

I would post a picture, but I'm 30 miles away from the car at present.