This mug is dated on the bottom to 1978 and shows it was made by Enesco giving the id number E-7416.  The design is Garfield with the “World’s Greatest” “Grandma” phrasing.

The mug measures 3.25 inches tall and 3 inches in diameter, 4 with the handle.

It has been in storage for decades.

This is package number 7068.