The necklace that once belonged to London crime bosses Ronnie and Reggie Kray is set to fetch £8,000 at auction.
The 9ct gold cross first belonged to Ronnie, who wore it most of his life ruling the London underworld with his brother, Reggie.
After Ronnie's death in March 1995, it was passed to Reggie, who wore it in memory of his late twin.
A pair of glasses with a built in hearing aid that belonged to Reggie Kray will also be going under the hammer alongside the gold chain(Image: Joseph Walshe / SWNS)
Reggie continued to wear the treasured trinket until his death in October 2000, after his release from prison.
It is expected to fetch between £5,000 and £8,000 but could sell for far more when it goes under the hammer.
Following his death, Reggie's widow, Roberta, gave the cross and chain to the twins' close friend, gangster and music producer Wilf Pine.
In a letter dated December 14, 2003, Roberta thanked Wilf for his loyalty to the twins.
She wrote: "The cross originally belonged to Ron, before passing to Reg, and I'm sure they both would have wanted you to have it.
"I'll never forget your kindness and support or the friendship that you and [wife] Ros have provided through the years. It has meant a lot."
Wilf worked as the Krays' enforcer in the 1960s and forged close connections to the New York Mafia.
In a letter, Wilf wrote: "I was with Reg when he took his last breath and he was still wearing the cross and chain when he passed away."
A letter written by Wilf Pine to Albert Chapman(Image: Joseph Walshe / SWNS)
Before Wilf died in 2018, he gave the cross to his friend, Birmingham nightclub owner and bouncer Albert Chapman.
Albert is now selling the cross, featuring a machine-turned decoration on the front, on September 25 at Fieldings Auctioneers in Stourbridge.
Auctioneer Will Farmer said: "The provenance continues through Albert Chapman, a central figure in Birmingham's music and club scene, who built long-standing ties with the Krays, the Lambrianou brothers, Wilf Pine, and even Charles Bronson.
"Chapman's unique story strengthens the chain's history and cements its significance as a cultural artefact."
Other items for sale include a pair of Reggie's glasses and hearing aid, which he wore in his final years, which have an estimated price tag of £300 to £500.