On the posters there is not more information then the usual copyright stuff.
The back is just plain white.
They come from the Dutch distributor of Temple of Doom, they have had two sets of these and were to be used during the royal premiere of the film.
However one ( this set) set was not used, and they used these posters instead:
This picture should give you an idea of its size:
This set is not special created for the Dutch premiere, but in all these years I could not find any other sets or any information about it.