only true zenfidel will know this. unless you want to read 9 thousand pages to find the answer. it is there.....mentioned quite a few times...but good luck finding it. it is also a trick question in a way as there are two possible answers depending on the interpritation of the question...."first zenesis available for purchase". could be the first ss zen, or could be a limited offering.....i should enter this contest cause i know the answer to both, but i would rather someone else to try for it...i am content with the zens i have...and really want some of the new offerings