This is a lot of 2 Royal Collection Fine Bone China Mugs. I believe these are bought when visiting these historic locations as souvenirs.
They are very nice.  There is wear from everyday use the rim of the Windsor Castle mug has some loss of the gold trim from many years of use Otherwise both are in great condition. 

The first is a Mug from Windsor Castle.

The Second is from Clarence House.

See pictures for the full description. 

I always have a money back policy on all my items.
Thanks for looking and have a great day,
Joe