Grado cartridge marked

Might translate into "The Reference."
Check out needledoctor.com for the details/comments on this cartridge.
Also, can call Grado directly to be sure what production variations there may be with this particular lettering.
Have you actually heard this in a system from which it will be extracted?

Yes it's "The Reference" and MSRP is $1200. I had one.

Thank you very much for the information posted. I saw a reference before, but the wood was lighter in color and did not have any kind of markings on it.
To answer your question, yes, I listened to it and sounds fantastic! My best regards.