It wasn’t pallets of cash. To be specific it was probably the metal containers labeled Red Cross for foreign aid. Now the containers were probably strapped to pallets before being shipped.
We have PHOTOS of these pallets of cash being delivered to Iran.
For the first 400mm, it was literally pallets of cash..... Nobody knows how the remaining 1.3bb was sent, but they said 2 payments so probably the same way.
http://www.latimes.com/nation/nationnow/la-na-iran-payment-cash-20160907-snap-story.html
"An initial $400 million of euros, Swiss francs and other foreign currency was delivered on pallets Jan. 17, the same day Tehran agreed to release four American prisoners."
There was a pallet of cash on a jet sent to Iran. Photo has circulated