TEHRAN This is not something I should be doing,” Mehrdad Oskouei says, shuffling through thick stacks of sepia-tinged postcards of long-bearded Qajar noblemen, mustachioed revolutionaries, veiled women and wandering dervishes. Mr. Oskouei, perhaps Iran’s most prominent documentary filmmaker, has spent a considerable amount of time and money assembling the collection, a venture that many of his friends and relatives see as a quixotic cultural crusade.
