The Pen

"The Pen" is the 20th episode of Seinfeld, the third episode of the third season which first aired on NBC on October 2, 1991. This is the only episode in which the character of George Costanza does not appear and one of two episodes in which Kramer does not appear (the other being "The Chinese Restaurant"). Additionally, this episode is the first appearance of Morty's rival Jack Klompus and of Uncle Leo's wife (and Jerry's aunt) Stella.