|url=https://books.google.co.ukcom/books?id=3HA3EAAAQBAJ&pg=PT502&lpg=PT502&dq=watermark+royal+arms&pg=PT502}}</ref>{{pn|date=July 2021}}{{efn|[[Charles I of England|Charles I]] was executed on 30 January 1649, which would have been the cause of this supposed change. There were only around 40 mills making hand-made paper in England between 1601 and 1650, with 23 of them within 30 miles of London.<ref name="Hills" >{{cite book
|last=Hills
|first=Richard Leslie
Line 54:
|page=52
|isbn=9781474241281
|url=https://books.google.co.ukcom/books?id=Zn5qCgAAQBAJ&pg=PA52}}</ref> It appears that the manufacture of white paper in England had come to a halt in around 1641, perhaps because of the lack of a [[linen]] industry for raw materials, and more likely because of the impact of the troubled times leading to the [[First English Civil War|Civil War]]. The French had become the most prominent supplier of white paper from around 1600–1675, when the Dutch took over.<ref name="Hills" /> If there is any truth in the matter, it is possible that imported paper bearing such a mark might be the cause.}}
