Dating an early Sportomatic gearbox?

OK, so I've got this early sporto transmission. Trying to date it correctly. It's a 905/01, so from this wonderful site : http://www.blueskymotorsports.com/in...id=17&Itemid=6

I can be reasonably certain that it is a 1967/68. From the serial number - it looks like it is the 2nd one built in the series? Is that right?

http://i61.photobucket.com/albums/h4...psoqy8syo8.jpg
http://i61.photobucket.com/albums/h4...psc6k38xiq.jpg
http://i61.photobucket.com/albums/h4...psuhqhdwvp.jpg
http://i61.photobucket.com/albums/h4...psiaofify7.jpg

I'm just posting because I love the thread title.

LOL. My wife would nod her head at my social life. "Dating car parts - yeah, that's my husband."

More data...

http://www.elferhelfer.de/fz-ident/1968.html

Thanks - you rock.

So according to that chart, it's the SECOND 1968 911 S with a Sporto. Not that that's a huge deal, just kinda interesting to me. And if I can find that car...