to Cjd -
Don't mix up the unauthorized flood of topical stamps from the Trucial States with the valid postaly issued stamps. There are some very scarce issues from the 1960's and 1970's. Look in Scott for UAE 1-12 $750 mint. Trucial States 1-11 Stanley Gibbons 35 Pounds mint 65 Pounds used. Also the first issues of Abu Dhabi, Scott 1-11 and the very scarce 15-25 of which only 3000 sets issued.
the UAE traffic stamp that you comment on has a catalog value of 17 Pounds mint and 10 Pounds used in the Stanley Gibbons middle east catalog. It may not be your 'thing' but your comment suggests you have preconceived ideas about this popular area.
I'm pretty certain there are more than 3 used examples of the stamp you commented on.
Scan is the UAE high values to the set 1-12.
