This is a commemorative cup only or mug made for the Silver Jubilee of Queen Elizabeth II of England in 1977. 

The ironstone mug or cup was made by Grindley, England in a colorful transferware design featuring a favorite depiction of Queen Elizabeth surrounded by elements from the royal coat of arms.

The mug measures 3 inches high by 3.25 inches in diameter and has a lovely and colorful design.

The mug or cup only  is in very good used vintage condition.