I’ve walked by entrance to Gene’s restaurant on 11th Street and Sixth Avenue many, many times and just recently noticed the painted window sign sporting the pre-1960s OR phone exchange.
OR was for Orchard, later Oregon, according to this old phone exchange chart.
Gene’s is serious old-timey Village French-Italian, open since 1919. Their website includes a link to a 1958 Village Voice review featuring fantastic vintage ads for other restaurants and cafes of the era, such as El Charro and Chumley’s.