The Viktor Wynd Museum of Curiosities, Fine Art & Natural History has added the penis to its unusual collection of exhibits at a cost of £2,500 ($3,200) for a year.
The museum curator claims that the rare piece belonged to an 18th Century Englishman who happened to become rigid as he was hanged.
A lack of oxygen to the brain, which was caused by this method of capital punishment can lead to erections forming.
However, the penis has not been verified by an independent historian as yet.
‘It was removed from an 18th century Englishman who was hanged. When people were hanged they’d nearly always get erections and nearly always release their seed’, Viktor Wynd, the museum’s curator told MailOnline.
‘I think quite a few were made but this is the only one I’ve heard of’, he said.
The controversial museum has unveiled what it claims is a seven-inch long mummified erection (pictured) which was apparently admired by Oscar Wilde
‘It’s been around in different private collections and Oscar Wilde was an admirer’, he said.
Mr Wynd said the artefact would cost more than £100,000 ($128,000) to buy.
The practice of restricting oxygen to the brain is even used by some as a form of sexual arousal, known as erotic asphyxiation.
But science has also suggested a ‘death erection’ also technically called as a priapism that can occur post mortem, and is accredited to pressure on the cerebellum at the base of the brain created by the noose.
‘The use of asphyxiation as an erotic aid is well-documented since the 17th century’, he said.
He explained mummified body parts are supposed to have ‘magical properties’ in some ancient cultures.
He said: ‘Body parts were frequent perquisites of executioners and many different parts were supposed to have magical properties.
‘For example, there is something called the ‘Hands of Glory’ – which is the mummified hands of hanged men which were believed to be extremely powerful.’
For a number of years, the strange object has been in a private collection before ending up at the museum.
The attraction is not for the easily-offended as it also features ancient Chinese sex toys, numerous mummified animals, the skull of a Cyclops, and a jar of the late singer Amy Winehouse’s poo.
Mr Wynd said he was a friend of Amy Winehouse’s and one night when they were drinking they decided to make an exhibit out of one of her faeces.
‘It’s a sad story we were all young and having fun. One of those things that we thought was funny one night’, he said.
The other objects such as the Chinese sex toys and the skull of a cyclops were collected by Mr Wynd who travels around the world looking for strange things.
‘In Ireland in the 16th and 17th century they did a lot of digging and found these huge skulls that had one eye’, he said, talking about the origins of the cyclops skull.
‘They thought they were what built the Giant’s Courseway and giant stones and things but actually they were bones of woolly mammoths’.
Mr Wynd used money from a crowdfunding campaign to buy a Peruvian mummy, after falling short of the original target.
Originally Mr Wynd wanted to get a mummified head for £5,000 but his crowdfunding fell short of the target so decided to rent the penis for a year instead.
It was unveiled yesterday [Tuesday] and will remain on display for the next year.
The museum also contains the public hair of Russell Brand and Russell Crowe’s urine.
It also has an assortment of stuffed animals, dodo bones and feathers from extinct birds.
Other exhibits include an eight-legged lamb recovered from Fukushima.