Figure 1
From: Tracking the British agricultural revolution through the isotopic analysis of dated parchment

Legal deeds. (a) Title deed concerning the ownership of land in Enfield, Middlesex, signed and sealed 15th January 1499 (sample DL035); (b) title deed concerning property in Hanbury Woodend, Staffordshire, signed and sealed 11th August 1728 (sample DL110).