Tiffany & Co NY Royal Crown Derby Pink Gold Gilded Vase England Real or Fake

Description

I have recently come in to possession , this exquisite pink and gold vase.  It is about 10 inches tall and the bottom is 4 1/2 inches across.  I am having trouble comping this vase with all of the
exact
markings.  Markings, we know, change over the years.  From my research that I was able to find... the Royal Crown Derby symbol under
New York
would date this vase to 1891 - 1892.  If its real.  Selling as is, since I am unsure of its authenticity.  I do not have knowledge of art pieces so I am not sure what I have here.  It is bone china and only weighs 8.5 oz.  There are no chips or cracks.  I just love the ruffled skirt bottom.  It really is a lovely piece.   The main photo best represents the color.  The inside is a little dirty...I am too afraid to handle this piece, so it is going back into the cabinet. I am hoping that someone who knows about Royal Crown Derby and Tiffany...2 amazing names, will know if this is a real piece or a forgery.  I have never sold either brand.  See photos and thanks for looking.
I sell mostly vintage and collectible items in my Ebay store.
I am nostalgic as can be