This weekend, Caffé Trieste is celebrating its 50th anniversary in San Francisco. Besides being the site of Francis Ford Coppola’s artistic inspiration for The Godfather screenplay, Caffé Trieste is credited with introducing espresso to the Bay Area — if not also, to a shared extent, America.

They are celebrating by offering 25-cent espresso shots this weekend, the price they charged when they first opened in 1956: North Beach Cafe Sells Java For Quarter. Get ’em while they’re hot.