In 1978, DC Comics teamed up with printer Mark 1 to release a range of superhero-themed greeting cards.

Just another nerd.
In 1978, DC Comics teamed up with printer Mark 1 to release a range of superhero-themed greeting cards.
In 1978, DC Comics teamed up with printer Mark 1 to release a range of superhero-themed greeting cards.
Jordan Gibson created this Studio Ghibli-style drawing of Batman and Robin.