Grado TLZ ???


Hi, just purchased a grado cartridge. It is the gold with a TLZ "v" stylus. The TLZ v is engraved. How do you tell the signature? Does anyone know if this info is available and if so where? Thanks
rnadell
Also there are numbers you can see looking at the rear, find the month and year; if you have that, you have a TLZ. The Gold body is gold not silver. Hope this helps.
From the Grado website:

Grado Signatures -- the 8, 8M, 8MR, MCX, 8MZ, and TLZ
Well I find it interesting that Grado does not identify their cartridges with some kind of marking and with that said how do you measure the output of a cartridge? I suppose you could get some idea with the cartridge set up and running but it would be nice to know beforehand.
There does appear to be stamped on the rear of the cartridge C60. I will research the Grado site and see what this means. Thanks to all who are helping with info.
Rich, No question that the TLZ has about 1.5mV output. You would need a phono stage with enough gain for the typical high output MC cartridge to get the most out of it. I am listening to mine these days using an Ayre phono stage set to lowest gain (for MMs) and I have to crank up the volume control (on my linestage) quite a bit to get adequate sound pressure levels.