Swedish Hors d'Oeuvres, Anyone?

I've posted in the past about old restaurants of many stripe: Italian, German, Spanish, Chinese, steakhouses, chophouses, society joints, cafeterias, etc. Swedish restaurants, not so much. A reader sent me this photograph of the Gripsholm Restaurant, which lived on E. 57th Street in midtown Manhattan. The postcard is from the 1930s. It looks pretty elegant. And I love the little bar set up for "Cocktail Hour" (which we see, by the hands of the clock, is 5 p.m.). I am intrigued that the most famous feature of the Gripsholm was its "Swedish Hors d'Oeuvres." "Swedish Hors d'Oeuvres" means smorgasbord. And Gripsholm was famous for theirs. "It goes without saying that an appetite for hors d'oeuvres is a prerequisite for true enjoyment of a Scandinavian meal." The same article says that the Gripsholm's smorgasbord featured, yes, pickled herring. Also, eel, salmon, fish canapes, cold cuts, head cheese, pig's feet and "the s...