california black & yellow plate ?

[project 67 sub]

my dad has a buddy that has a couple of old trucks in his yard. i believe he said they were fords, not sure of year that have a set of black plates on each one that should not be in the dmv computer anymore as they have not been on the road since like the 80's or so and are pretty stripped. could a set of these be used on my '67 burb under the (YOM)year of manufacture plate thing through the dmv? need to know asap thanks.