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Scroll down to the photo album to see the Iranian National treasures. I scanned in the postcards which I bought at the treasury in Tehran. Sorry that you have to click on each thumbnail to enlarge the picture - that is how the thing works. It is a commercial website and therefore has ads: Sorry about that, too.
My apologies for all the "out of context" quotes. No prizes for recognising the sources; about half of them come from Fitzgerald's version of The Rubaiyat of Omar Khayyam.