six red post boxes, worth about £200 each, have been stolen from a reclamation yard.
The post boxes were taken from Valley Reclamation on Sheepbridge Lane, Chesterfield. Officers investigating said the thieves would have needed a getaway vehicle.
The boxes, which are reproduction, were among a haul of items taken, including Stihl saws.
Anyone with information about the theft - which happened some time between 5pm last Tuesday and 2pm on Wednesday - is asked to call police on 101.