A pair of running shoes signed by six-time Olympic champion Usain Bolt were among the items stolen during a burglary.
The orange Puma running shoes, signed by Bolt and framed for display with a photo of the sprinter after he set a new world record in 2009, are valued at around £20,000.
The shoes were among the items stolen during a burglary at a commercial premises on an industrial estate in Gloucester Road, Croydon.
Police believe the offence took place between 10.30pm on Saturday 26 April and 5.45am on Monday 28 April.
Officers have urged anyone with information who has been offered the item to purchase to contact Croydon CID on 0203 276 2287.