A yellow-gold and diamond claddagh ring that once belonged to notorious Boston mob boss James “Whitey” Bulger has sold for $23,000 at auction.

#Bulger skull ring is attracting a lot of attention. This belt buckle..not as much. pic.twitter.com/tzacWYTj6z

— Lana Jones (@Lanawbz) June 24, 2016

The U.S. Marshals Service auctioned items belonging to Bulger and his longtime girlfriend Catherine Greig at the Boston Convention and Exhibition Center on Saturday, WCVB.com reports. The personal effects of the couple were confiscated from Bulger’s apartment in Santa Monica, CA, when he was found by the FBI in 2011.

Mother and daughter pay $55 for #Bulger shopping carts and glass ornaments pic.twitter.com/aN8385Qv84

— Katharine Q. Seelye (@kseelye) June 25, 2016

Proceeds from the sale will be donated to the families of Bulger’s murder victims.

Other times for auction included a replica Stanley Cup ring, watches, clothing, and sneakers that belonged to Bulger. A hat worn by the gangster sold for $6,400.

The #bulger Rat Cup goes for 3800. pic.twitter.com/orFia1mEJN

— KarynRegal (@Karynregal) June 25, 2016

Bulger, now 86, fled Boston in 1994 on a tip from a corrupt FBI agent. He spent 16 years on the run before the FBI caught up with him in Santa Monica.

U.S. Attorney Carmen Ortiz said authorities did not want to glamorize Bulger but hoped the auction raises as much funds as possible for his victims. The sale raised more than $100,000 for the victims' families.

This yellow-gold and diamond Claddagh ring, which once belonged to mobster boss James ‘Whitey’ Bulger, is up for auction starting at $11,370.US Marshal Service/Gaston Sheehan