Thanks for the help. Looking under BMS type I was able to find a page where they were described as s-shaped or bent steel needles. That led me to someone selling the same type of needle as a replacement for the Astatic N4-3S and that helped me find this:
http://www.turntableneedles.com/Needle-151_p_887.html
I just purchased a replacement for 13.95 and free shipping, so I'm pretty pleased. Just thought I'd share the details above in case anyone else comes along looking for one.