Jack Fifield @jackfifield.uk · May 4 What would be the best/least harmful way to clean this? 1 likes 3 replies ? Reply Replies Abigail Dombey · May 4 Paging @oldenoughtosay.com Martin McDonald · May 4 I'd be very careful it's not (legally) protected in some way? still last · May 4 Looks like this one .... there's a link down the page to the Milestone Society who offer prim and worthy advice. (The post is iron, so i guess soapy water and a soft brush won't do any harm) www.geograph.org.uk/photo/7688370