Q. How do I request permission to use an image in the map collection?

You do not need permission, as Harvard claims no rights to images of works in the public domain.  Harvard's policy on digital reproductions of its works in the public domain is available from this site: https://osc.hul.harvard.edu/pdpolicy.  You are free to mark up or excerpt the map as you wish. We would appreciate a credit line saying where the original came from.