Flyfish, thanks for the jog in memory. Yes, our local club was involved in the USRA postal matches every winter. I held the California double action record for one year! We shot at 50 feet indoors.
They were fun and you could win nice medals to hang on the wall.
Without digging too much into my bag full of medals, I found this example from 1989. !st place in grand aggregate for sharpshooter class in the state (CA).
You could choose to receive points to spend or medals. I knew the points would be long gone, but the medals would hang around as memories.
You shot the matches in the comfort of your own club with a witness, and then sent in the results to compete individually or team wise across the nation.