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Hi We have two large (cA1) files of mid 20th century Ordnance Survey maps, not housed with our other collections, but needing to be moved from their current site. The files are made of fabric-backed card. We have no area to quarantine them, or to house them in suitably dry conditions. The files have become mouldy and the mould has spread to some of the maps inside. In one file the maps are bound to the file itself. We have a freezer the right size to take both files - I will need to check its temperature specs of course - but I am not sure what is the best way or the best materials to prepare the items for freezing. Do you have any advice? Is this something I should be seeking advice from a conservator on? Many thanks -- Paul Davidson Collections Officer Hillingdon Local Studies, Archives and Museum Service Level 6 Central Library High Street Uxbridge Middlesex UB8 1HD tel: 01895 250702 -- Hillingdon Council routinely monitors the content of emails sent and received via its network for the purposes of ensuring compliance with its policies and procedures. The contents of this message are for the attention and use of the intended addressee only. If you are not the intended recipient or addressee, or the person responsible for sending the message you may not copy, forward, disclose or otherwise use it or any part of it in any way. To do so may be unlawful. If you receive this email by mistake please advise the sender immediately. Where opinions are expressed they are not necessarily those of the London Borough of Hillingdon. Service by email is not accepted unless by prior agreement. Contact the list owner for assistance at [log in to unmask] For information about joining, leaving and suspending mail (eg during a holiday) see the list website at https://www.jiscmail.ac.uk/cgi-bin/webadmin?A0=archives-nra