As noted above, not one for the International crowd due to its language and subtitle extreme limitations . . . other more de luxe option for this particular steelbook is the 30th Anniversary Limited Edition (of 500 pieces) Collector's Box.
Yet another option - this time English language friendly - is the Australian box set w/ this steelbook included (but with the older disc).
According to Amazon.au, "Celebrating the 30th anniversary of one of the most iconic and influential anime feature films ever made, Madman presents a deluxe limited edition box-set reissue of Akira - including a DVD + Blu-ray combo pack Steelbook, official double-vinyl gatefold soundtrack, two books covering production and art, all wrapped up in premium packaging."
Pics of the Italian steelbook courtesy nuikichiSB:-
Insides + the Ltd. Ed. Boxset:-
(Looks like same booklet as in previous steelbook - in Italian this time I guess)