Only one piece of known Ed Gein evidence exists as owner warns people who look up serial killer

A museum owner who says she has the last authentic piece of evidence from the Ed Gein case made from human remains has issued a warning to other people who have developed an interest in the serial killer.

Gein has gained newfound recognition thanks to a Netflix true crime drama based on his deeds starring Charlie Hunnam, so there's an awful lot of viewers hoping to find out more based off what they've seen on TV.

Monster: The Ed Gein Story makes drama out of the man who is responsible for killing at least two women in the 1950s, with him reputed to have made household items out of skin, bones and body parts.

If you go digging around crime museums then you'll find all sorts of old items which claim to be the genuine article and truly made by an infamous killer, but The Graveface Museum co-owner Chloë Manon has warned that almost everything you'll come across isn't the real deal.

However, there is one piece of evidence which she says is true, and that's a keychain with human hair attached to it which is in the museum's possession.

Manon said it was possible that other pieces of grisly evidence that Gein made from his victims were still out there, pointing towards a transcript where they discussed a bin made out of human skin - Gein was told 'Don't handle it', implying that it was in the room with them.

However, she said that most pieces of evidence in the case were obtained illegally, couldn't be used in court and as such were 'burned, incinerated or buried'.

The keychain is purported to be the only confirmed piece of Gein's creation: a lock of a woman's hair along with the casing from a .22 bullet attached to Gein's keyring.

"Joe and Allan [Wilimovsky], for whatever reason, kept this piece of evidence so it's actually a keychain," Manon said, explaining the actions of state investigator Joe Wilimovsky and state crime laboratory worker Allan Wilimovsky in keeping this piece intact.

"It has a lock of a woman's hair on it, there is still scalp attached to this, and it has a little tab that has 'Ed Gein', his signature address written on one side, the Shell service station address information written on the back side.

"That Shell service station was actually right across the street from where Bernice Worden's hardware store was located."

Worden was murdered in 1957 and is one of the two women Gein confessed to killing, the other being Mary Hogan in 1954.

The killer was questioned about the hair and whether it belonged to Mary Hogan, but he never provided a clear answer and thus the identity of the woman whose hair is attached to the keychain remains a mystery.

Manon has also warned that several of the fake supposed pieces of evidence around Gein were mock-ups inspired by the works of fiction which took bits of Gein's story and adapted them.

Works like The Texas Chainsaw Massacre used some of the details from Gein's true crime story, but the museum owner warned that some people were 'just making s**t up' including putting together fake evidence based more on the works of fiction inspired by Gein than the truth.

Such was the desire for bits of Ed Gein's life that people kept chipping away bits of his grave - until the full stone itself was stolen in 2000.