Been looking at old ordinance survey(OS) maps in the local library they are more calligraphic and flowing than their modern counterparts. Some of these maps go back over a 150 years which is the sort of time frame that interest me. The maps were regularly re-published every twenty years or so, with updates and changes.
When comparing maps, the changes became very apparent. Starting with the earliest maps I could see a radial growth from the center, evidence of new replacing old. Swathes of woodland disappear as time moves on. I suppose any place is patch worked in this way, bits being added, removed and replaced. Some maps reveal significant social changes, workhouses were indicated on maps from the nineteenth century and maps from the 1950's onwards show evidence of social planning at that time, with the appearance of large estates and schools and the infrastructure that supports them.
As I understand it any map which is fifty years or older can be freely used without infringing copyright. If you wish to use more recent maps you need to contact the OS and seek permission. Many people think that the laws governing the usage of this type of material should be freed up in order that full creative use can be made of them. I intend starting my project next year (Feb time) so now seems a good time to approach the OS and clear my proposed usage.
