Old, odd bushing clip for throttle linkage

Everything has a throttle return spring. Many are double springs for safety reasons. The throttle pressure linkage was changed at some year model also for safety reasons. A long slot at the throttle will allow the throttle to free return if/when the throttle pressure linkage hangs up.
Myself, my sister, and her little friend Susan were nearly ran over by a run away 60 Belvedere when we were kids.