USPS and mail to Iran

With the new postal rate change (for time travelers, this is January 2005 and First Class mail is now, what, 39 cents an ounce), I had to calculate the price of sending a 3-ounce envelope to California. On the www.usps.gov website, there is a mail rate calculator, and they include one of those "pick a nation" lists. For laughs, I picked Iran.

Now I don't know if it's the U.S. Postal Servace, or maybe the good ol' Iranian Postal Service, but you tell me if this price makes any sense:

Rate charts and complete information for Iran
	Mailing Services   (Show Dimensions) Estimated  Delivery Time*  Price     Airmail Letter Post     4 - 7 Days $2.40      Economy (Surface) Letter Post               (Rate for pieces 16 ounces or less) 4 - 6 Weeks $6.00    *Designed to be delivered in the number of business days specified for each service depending on origin and destination.

Hmm, let me see... Airmail takes a week and is $2.40. Economy mail takes up to 6 weeks and is $6.00. I'm trying to save some money here, and after all it does say "Economy"...