Photographer William John Kennedy is believed to have taken the only photographs in existence of Andy Warhol and Robert Indiana, and he's about to share what he saw through the lens. On April 19th an exhibition of newly published prints of the two will open at Site/109, where they note the images of the artists show them with their works, including Warhol’s Marilyn Monroe and Indiana’s iconic LOVE.

The photographs have been in storage for nearly half a century, and will only be on exhibit for about a month, through May 29th. Click through for a look at the show, called Before They Were Famous.

Now, whatever happened to those missing negatives which have documentation of Warhol's Factory for about 7 years?