Herfy's was a popular chain of burger drive-ins that populated the Puget Sound area from the mid-1950s and peaked in the mid-1970s. They were known for their "Herfy Burger," with secret sauce. Although the chain was sold in the 1980s, the name Herfy's lives on in a couple of independently owned Seattle-area locations, including one in Georgetown.

In this image, a Herfy's employee stands before the grill flipping burgers while two others look on.

Caption information source: http://blog.seattlepi.com/thebigblog/2014/04/08/ivars-to-close-in-ballard/#photo-388986
Caption information also derived from captions written by Post-Intelligencer staff and attached to the back of the photograph.