Aha...I just checked airlinerlist.com, and there are three 737-200s that Iran Air flies that Boeing delivered to them brand new in the early 70s. These are the ones you want pictures of I assume.
But it also lists two ex-Iraqi 737-200s parked in Teheran. I heard rumors that Iran Air had "inherited" them and was using them, but the database suggests that they never flew for Iran Air. Have you ever seen these jets parked there? I will notify the list of their status.