A nipple-shaped nubbin on a historic city wall is said to bring good luck to those who rub it.
The flint knapped wall in Bridewell Alley was built around 1405 and rumours have recently resurfaced about its power to bring good fortune.
It is believed that the superstition began when pupils from the Norwich School - which dates back to 1096 - started rubbing the wall to ensure their future success.
That was what Cheryl Cade was first told by her grandfather many years ago and reminded of during her work in the city centre.
The 52-year-old is a beer and cheese sommelier and offers tours of Norwich - which now includes a visit to the nipple.
She said: "This wall is one of the best examples of flint knapping in the country.
"I was on a tour one day and a gentleman stopped and said 'don't forget to rub the nipple' and he even showed me in a book.
"It is said to be linked with the Norwich School and the boys used to rub it for good luck.
"I do it on every tour now."
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here