Mego Library: 1977 price sheet

Superheroes Assortment 1 (51317) Superman, Mr Myx, Supergirl, Shazam, Green Arrow, Thor, Conan, The Falcon, Isis.
Superheroes Assortment 2 (51318) Batman, Robin, Batgirl, Catwoman, Penguin, Joker, Riddler, Aquaman, The Hulk.
Superheroes Assortment 3 (51319) Green Goblin, Spiderman, Capt. America, The Lizard, Iron Man, The Thing, Torch, Mr. Fantastic, Invisible Girl.