The company produced some 2,000 of the long, narrow, primarily metal buildings, perhaps more than any other firm.
[1] Prefabricated in a factory and trucked to their locations, the diners resemble and are often confused with railroad rolling stock.
[2] In 1912, the first lunch wagon built by Jerry and Daniel O'Mahoney and John Hanf was bought for $800 by restaurant entrepreneur Michael Griffin and operated at Transfer Station in Hudson County, New Jersey.
The wagon helped spark New Jersey's golden age of diner manufacturing.
[4] Overseas examples include: At least 26 pre-war Streamline Moderne-style O'Mahony diners (built between 1932 and 1941) still existed as of 2015.