To support Ioannis, none of the items listed on e-bay by the seller in question are listed as souvenirs or memorabilia. They are all listed as White Star Line RMS Olympic. This implies they are genuine, Olympic used items.
As has been posted and shown in the collectors article, none of those items conform to the format used by White Star or the items manufacturer.
Finally, as has already been said, even my 7 year old son knows that RMS Carpathia was a Cunard liner. To think someone paid £111 for that is shocking.
A quick search on e-bay shows you can purchase tea sets of the same vintage and better quality (without the added White Star name of course) on a buy it now for less than half that.