If you get another Astatic, the cartridge number is 17d. It's a ceramic 3 gram, 350 millivovlt type. The needle is N41-sd. the sd denotes diamond and saphire. The frequency response is 20 - 20kHz.
http://www.canadianastatic.com/uploa..._reference.pdf
I used a old Zenith phono cross ref to find the Astatic number then googled Astatic.