"Founded in 1907 by Louis C. Wachsmuth. This unique shellfish restaurant is one the showplaces of Portland. Located on a narrow one-way street in the old business section of the city, the Oyster Bar is famous for its oyster stew and small Yaquina oysters. The two main dining rooms are decorated in knotty pine and adorned with beautiful china plates, ship models and oddities from all over the world. 208 S.W. Ankeny, Portland, Oregon, (227-5906)."
Sent to me in 1979, but the card has a 1960s look to it.