The Charles Close Society Archives is available for consultation by researchers in the Map Room at Cambridge University Library. Appointments for access should be made in advance by contacting the Head of the Map Department, Anne Taylor (maps@lib.cam.ac.uk). Further contact details and Map Room opening hours can be found at https://www.lib.cam.ac.uk/collections/departments/maps/map-department-contact-details. Anyone wishing to use the collection must first acquire a Cambridge University Library reader's ticket, see https://www.lib.cam.ac.uk/using-library/your-library-membership Members of the Charles Close Society wishing to consult the Charles Close Society Archives will not be charged for a ticket on production of their current CCS membership card and providing that they have first contacted Anne Taylor who will support their application.