Here is an interesting topic.
What years had painted embossed letters and what year did they go to decals? I thought from 80 in they were decals. Dads 85 has always had decals. Factory decals are pretty thick compared to current aftermarket.
I was just scrolling Facebook and saw a truck that had faded painted letters. Very interesting.
Here is another topic of discussion that has raised interest in groups. I have only ever seen one other tailgate like this, they are out there.
The raised letters as factory were actually /recessed/ on this gate. This is a Ford OEM tailgate supplied by the local dealer, summer 1993 and I do beleive I have the invoice somewhere.
Now you could say oh, its paint dust and shadows.
Take a closer look at the shadowing. Light is being angled from the left hand side. Those are definitely recessed letters.
1978 F150 351W
1979 F150 "410M"
1979 F100 302
1979 F250 400
1987 F150 300
1990 F150 302
1991 F150 300
1995 F150 (1985 clip swapped) 300
1997 F250 351W