I've seen pictures of Sami with a newer looking Jazz of the same color. The pics are from when he first joined the Dolls, so I'd imagine it's the same bass with a couple of albums and tours behind it. Back in his Hanoi days, Sam was a Gibson diehard (at least three 70's birds, a Triumph, a V, and some sort of EB). The Triumph, V, and EB were from mimed TV appearances so who knows if he really used them, but the Thunderbirds were a constant presence throughout their run. I think he was still playing birds when I saw him with Jetboy, as well. He also played an Aria ZZ bass (32" scale if I remember correctly) that made it onto their Marquee video and album (All Those Wasted Years). I had one of those for about 5 minutes in 1986. Played and sounded pretty good. Just not my cuppa.
Sam also plays guitar in Mad Juana. I really like them, too.
http://www.myspace.com/madjuana