Langer's

 Founded in 1947, Langer’s Delicatessen and Restaurant has served generations of patrons for more than 66 years.

Langer's initially opened with only $500 on hand, requiring loans from partner businesses and operating with only Langer, his wife Jean, and a dishwasher, working sixteen-hour days.  Corned beef sandwiches initially sold for only 35 cents,  and throughout the 1940s and 1950s, most of its clientele came from the Jewish immigrants who inhabited the hotels and boarding houses surrounding MacArthur Park at the time.

What better introduction to Langer’s than this, by David Shaw writing for the James Beard Foundation in commemoration of our America’s Classics award:

“In Los Angeles, where any business that stays open for more than five years is likely to proclaim itself a “legendary institution,” Langer’s Delicatessen is the real thing. Langer’s is also a living microcosm of the Los Angeles story, from dramatic post-war growth through all the triumphs and tribulations, changes and challenges that have followed.

Opened in 1947 with just 12 seats, almost forced out of business by recession and the urban blight of drugs and gangs in the early 1990s, then rescued by — of all things in Los Angeles, a subway! — Langer’s lives on, serving what many deli aficionados on both coasts consider the best pastrami sandwich in America. Norm Langer started working for his dad, Al, in 1963, and he’s been there virtually every day since. His father, who passed away shortly after the restaurant celebrated its 60th anniversary in 2007 — would come in for a few hours three or four days a week to help out with the lunch rush and greet longtime customers, many of whom recognize the children in the family photos on the walls.

Just west of downtown, in a neighborhood more shabby than chic, on a street corner at Seventh and Alvarado in a heavily Latino area, adjacent to a burgeoning Korea Town, it draws an eclectic and loyal clientele — including at least one Korean businessman who calls Langer’s pastrami “Jewish kimchee.”

Langer's is known for its No. 19 pastrami on rye sandwich, described by the Los Angeles Times as "the Marilyn Monroe of pastrami sandwiches".  Since its founding, the restaurant claims to have sold over twenty million pounds (9,100,000 kg) of pastrami, and its pastrami has been deemed by some as being the best in the world.