I messed this up. I thought I read a reply that is not there. Please forgive me.
Proof of what? You stated that the map I posted was made up! Now you say it's the same as yours?
The map you posted as part of #43 includes a heavy dark line of the (false) claim of a border west of the border in the treaty. That is the map I was referring to. I believe the heavy dark border west of Copper and Wrangle is made up, not ever true.
What islands do you believe lie east and west of 193 degrees?
You still didn't answer the question.
Meridan 193 is not the dividing point of the treaty. It is the end point of the line starting midway between the islands of Krusenstern and Ratmanoff, proceeding southwest between St. Lawrence and Cape Choukotski, to midway between Attou and Copper and continuing in this direction until it reaches the 193 merdian.
The 193 merdian is not a dividing line. It is the end of the angled dividing line.