The bullet points indicate photos were signed and authenticated by Carrol Shelby - very likely went to Shelby American for the reason that I can't see why not if his sig is on the dash. I can except this reason for the Shelby look and if receipts available also.
That is entirely possible. In his later years, Shelby would sign anything...for a price. That said, every Ford guy and his brother have Carroll Shelby signed dashes...even on cloned Shelby cars. That does not mean Shelby built it. Lastly, If you were lucky to have 'ol Shel sign your real Shelby/Cobra car, then you may have some added value to it.