I recently won this duo of Star Wars Micro Fax booklets on Ebay for £2.09. They’re in OK condition (certainly not mint), but for some reason adding this to my collection pleases me greatly.
They date from 1997 and sold for 25pence at the time. There were twelve booklets in total, each of which is 16 pages giving information on their relevant subject. A small wallet was also released so taht they could be stored safely. I don’t think that that they’re particularly rare or anything.