I cant tell from that pic, but the wiper seal between outside door, and outside window glass fits into a recess on the chrome strip (420G, S-type, XJ)
I looked at the MK1 Parts Manual and it seems to be shown
You will need to consult with other MK1 owners, but in all vehicles I have noticed, there is a seal that stops water entering into the door cavity from the outside.
Even though there are drain holes in the bottom of the door to allow moisture to escape. I would expect there should be some…I couldnt see them listed in Scotts Rubber supplies…I dont think its “Bailey Channel”…could be wrong…you can email the proprietor
I got mine for a 420G there, made as a continuous length, 1.8m, I cut them to size and they fit perfectly…lack of availability of these seals is a big issue, as every door I have seen has been rusted from inside out, due to insulation glued to inside of door.
My inside doors are completely covered in rust inhibitor