Thieves made off with a Bennington Buccaneer horse drawn cart after raiding an outbuilding at Sutton St Edmunds.
Police say the theft took place overnight Friday/Saturday in the Broadgate area.
The cart is midnight blue and has a back step.
Officers from The Suttons Neighbourhood Policing Team are investigating.
Anyone with information is asked to call Lincolnshire Police on 101, quoting incident 94 of February 13.