Is it, like...a ghost? A creative take on a drop cloth? A Grimace™? What the hell is Jackie Kennedy wearing?

Buzzfeed’s Andrew Kaczynski unearthed a photo from Halloween 1962 showing a giant lump of black fabric with holes in it — supposedly, with fashion icon Jackie Kennedy Onassis underneath.

The image has been circulated before around Halloween time, a friendly reminder of just how fashion Jackie Kennedy really was. The Washington Post featured the photo in 2012, with commentary from historian Carl Anthony, who confirmed that the costume was, in fact, a garment bag.

“That is really her sense of the ridiculous,” said Anthony. “[She] would be the last person in the world to wear a garment bag on her head.”

[Image via White House/JFK Library]