If #939 does exist today, plenty have probably seen it tucked away, maybe even tried to buy it without even knowing the Shelby #,only to be told it's not for sale. They move on and keep it to themselves.
In fact it may not be that hidden, just not for sale and no info given.
Such was #2020's case, sat for 35years at Donny's shop,(South St, Long Beach CA) and plenty probably tried to buy it and didn't even get as far as the Shelby #.
Nightmist blue and parchment trim don't mean jack all.
I did not even know 2020 was a factory black car until i had bought her..........
BTW those two photos are nearly twenty years apart, 1988 and 2007
Donny owned 2020 for 42yrs and she sat in the one spot from 1977 till 2012 when i got her.