Today's post is purely informative; we'll leave any and all narrative to the readers.
Below is a section of a map which was drawn in 1949, and is filed in ג-3013/12, which comes from Ben Gurion's office and deals with matters of mass immigration in 1949-1953. The full map contains proposals for settling the large numbers of new immigrants. The section we're presenting, however, isn't about that; it's about the lines of 1947 and 1949 in the Jerusalem area.
The blue line is the intended border of the Corpus Separandum, the section of Mandatory Palestine which the United Nations didn't allocate to either side, Jews or Arabs, in the partition plan it adopted on November 29th 1947. The red line is a reasonable approximation of the 1949 armistice lines, referred to these days as the Green Line of 1967.
The little-known fact demonstrated by this map is that more than two thirds of the intended Corpus Seprandum lies outside the Green Line, in territory controlled between 1949-1967 by Jordan; and it includes the town of Bethlehem, as well as the area which today contains Maaleh Adumim.