I see you wear engineered garments, it's like e.g. doing a collaboration with gap and charging big $$$$'s
Stone Island - Page 7
This one looks strange to me - it is a genuine piece, but I have never seen Art No. like that - it is a Spring/Summer 2007 piece, but the last five digits confuse me. After season and brand digits (46 - 15), there used to be four digits describing the type, model, process etc. Later it was changed to five digits, but in 2007 there should still have been four. This is definitely S/S 2007 (46), Stone Island (15), jacket/shoulderpiece (4), but H401 I cannot decipher.
Again, it looks genuine judging by the label, buttons, badge, zipper, overall looks etc. It may be a special/limited edition piece but after almost ten years I can't remember if there was some info about it at the time. SI was popular back then but not as mainstream as today so maybe the special run was not even advertised.
Do you own this piece? Google search on the Art No. did not produce anything which is very strange. Try Offhand or Osti Archive community, maybe someone there will be able to shed some light.