I had three of these, sold them each for $150. A similar one sold on eBay, maybe 4-5 weeks ago, for around $130. It had a number either written or scratched on it. I e-mailed the seller, he responded the chip was sold as is, that he didn't know if it the number was scratched on, or in pencil that could be removed. I don't have any more of these currently, but could obtain more if the price was right. Any additional chips, would likely include a scratched or written number, that may not come off.