[Vendome]

Original geography of Palestine:

 

 

 

 

[Verginius Rufus]

Those are not the 1922 boundaries of Transjordan—the border with Iraq used to be a straight line with no zig-zag, and the border with Arabia has also been changed (the southeast part of Jordan used to bulge out more—they gave up some land to Saudi Arabia...I don’t remember when but I think within the last 30 or 40 years).

[Verginius Rufus]

I found a map put out by the Israel Ministry of Foreign Affairs online along the lines of your map (that is, to show Transjordan as detached from the original mandate area), but with the borders I remember as the earlier Jordan-Iraq and Jordan-Saudi Arabia borders. Apparently there was an agreement in 1965 whereby Jordan gave up some land in the far southeast in return for getting a longer coastline on the Gulf of Aqaba.

The Golan Heights wasn't part of the British mandate--I don't think it became an issue until the Syrians started firing down on Israel from there.