This was a license plate that was on my dad’s mom’s camping trailer. If my dad can remember correctly (which he pretty much always does) 1956 was the first year that California started to use 6 numbers on their license plate, separated into two groups of three.

This was a license plate that was on my dad’s mom’s camping trailer. If my dad can remember correctly (which he pretty much always does) 1956 was the first year that California started to use 6 numbers on their license plate, separated into two groups of three.