Produced in Blender with reference to schematics from Batty Langley’s 1745 work, The city and country builder’s and workman’s treasury of designs, which can be found on the Internet Archive. Pages relevant to this model are https://archive.org/details/gri_33125001119193/page/n29/mode/2up and https://archive.org/details/gri_33125001119193/page/n31/mode/2up