I do my best at identifying a marbles age and maker. If at anytime you find that a marble is not identified properly after your purchase you can return it postage paid by me for a full return including original shipping. I would NEVER try to pass off a marble as something it is NOT intentionally and I do make mistakes. If you are just noticing a marble that I have listed that you think is incorrectly identified please do bring it to my attention, however, unless you send me a photo out of a book, or an ad that looks exactly like the marble listed I may not change the title but I am very open to your opinion. I have had some pretty nasty emails from people with irrelevant opinions because they provide no proof and just threaten me. There is no need to use threats (nor is it allowed on ebay and threats put you at risk for losing privileges to use ebay) which are just mean spirited. I hate to have to say all of this but truly I have had so many hateful messages. Anyway, as a buyer you can be sure that you have the right to return a marble if you find out it isn't as described. Thank you to all who have helped me in a respectful way I truly appreciate you.