The picture below shows larger front and back views of this United States Navy Portsmouth Naval Shipyard Advertising Souvenir Ceramic Coffee Mug. The mug is not dated and the year that it was made is unknown. It is imprinted in black and blue on white ceramic. The front has an emblem with a submarine and a ship yard crane. The back has what appears to be a neon light bulb. It appears to have been an employee award for a great idea. It is marked, on the two sides, as follows:
SUGGESTER OF THE MONTH PORTSMOUTH NAVAL SHIPYARD I HAD AN IDEA
This mug measures about 3-3/4'' tall. It appears to be in mint unused condition as pictured.