Cartridge without serial?

Just checking ebay for Zyx and what caught my eye is that ones coming from Asia (known seller), and selling as new, are not perfectly packaged, missing the outer cellophane bag with a parallel sticker where cartridge model is printed, type is written by hand (manufacturer?) and serial number stamped. Box should have the serial number as the destination country initials. Both Zyx cartridges i have bought from local distributor here in Athens had serial number on cellophane bag, box and typed on manual, and the country initials (GR). Just check ebay to have a better picture. My simple understanding is that refurbished models are travelling around.

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@chakster where you get thousands of cartridges being manufactured of the same type and then being distributed is questionable. If a company like Zyx is selling and distributing thousands of cartridges into the world market at anytime, not only would that impress me , but would place me somewhat in disbelief. The whole high end market for a hand built Japanese cartridge, considering the competition and overall demographic of potential customers must be very small...so that even selling hundreds per year would be a significant accomplishment, imo. If you know differently, please point us to this information.

stay away at all cost it is a  fake.

@daveyf I'm tired arguing with you, if you think a manufacturer like ZYX and its designer Nakatsuka-San with at least 50 years experience in cartridge manufacturing can't make a thousands of cartridges nowadays under his own brand then high-end market must be completely dead. But again, they sell them all over the world, USA is a huge country, they sell in Russia, China and whole Europe ... Also they make so many different models from expensive to very expensive.  

@chakster  LOL, If you think that ZYX or any high end manufacturer of cartridges, with the possible exception of Ortofon, is making and selling ’thousands’ of cartridges annually, i have a nice bridge I can sell you....