Gullwing Sand Casting Mold

Chris Carmichael used to work for Gullwing and can remember shipping 3-5 thousand trucks a week, and he swears that went on for at least 15 years. One thing he cannot remember however, is which model this sand casting mold is for.

Staring at these is like looking at some sort of optical illusion.

Look closely, this is not the same side as the previous pic.

Finished cast.

What were these? 80’s freestyle trucks or older? Maybe one of these?