This is an aGiftCorp coffee mug.
The mug is gray with textured designs of sand dollars. Under a sand dollar, it says "St. Thomas U.S.V.I.". On the base of the mug, which is the same ruddy brown as the sand dollars, "agitprop" is carved in.
It measures approximately 4" tall, 3.25" in diameter at the rim, and 5" wide including the handle.
This mug comes in very good pre-owned condition.