Are any of the hidden listings for the same items as the ones that are visible (I first saw 3 listings, but now I only see 2)?

I only ask as they listings I could see are for coins (two of which are for the same coin  but in different quantities, and now I can't see the one that was for 3, while I can still see the one that was for 2), and if the hidden listings are the same as any of the visible ones, it's because of eBay's duplicate listing policy, which (in a nutshell) means a seller can have 1 Buy it Now and 1 auction type listing for the same item at any one time. Multiple Buy It Now listings will be ended by eBay, multiple auctions can be listed, but only one will be made visible at a time, so when one auction ends, the next one in line should become visible (not helpful when your duration is 24 hours and you have less than 12 hours remaining, I know).

More info here (just in case that is the reason) - http://pages.ebay.com.au/help/policies/listing-multi.html