I really doubt if the the one on your photo is Series 2. It has Series 1 bonnet, bumper, front wings, headlights and it's aerokit is also characteristic to Stageas before the facelift, so it is very likely to be Series 1.
http://mizuki.sakura.ne.jp/~sa_two/sa_two_...agea/stagea.htm - look, this one is defenitly Series 1 and it has the same body, headlights, aerokit, but with no eyelids and aftermarket grill.
When exactly was your car produced? Nissan has changed from Series 1 to Series 2 in August 1998, so if you find out the month of production of your Stagea you can become certain about it's series.
Regards,
Kirill
