1983 Marvel Super Heroes Fantasy Jigsaw

We put it together to make sure it is complete and it is a fun one! Not particularly challenging but enjoyable. 300 pieces "A Marvel comics family portrait featuring over 130 favorite characters. Can you name them all? The box bottom has a key to all the characters. The box is pretty beat up but the pieces are in good shape, clean and complete. Finished puzzle measures 22.5" x 33"