California Trailer Plate

California Trailer Plate

Picked this up last week with some other items. I didn't think much about it, just an old cali plate.

But after getting home, I noticed the PTI tab. I know that it's a blue California plate, so should be 1969 to 1986 era. Before 1969 the plates were black.

The PTI tab indicates it's a trailer plate. "Permanent Trailer Installation". I found a California plate expert and asked some questions. These were single issue plates vs 2 plates for car and trucks. Also the format is different for cars and trucks.