This is a Dunoon China, England Christmas mug by Sue Scullard with a design of a snowy English village scene with a tiny holly border, English robins and red bows.  

The bone china mug is in the Devon shape and measures 4.15 inches by 3 inches in diameter and was made in 2004 or 2005.

This design was discontinued several years ago.

The mug is in excellent used vintage condition with no chips or cracks.