A Style section article includes the following one-sentence paragraph:
The $22 corned beef Polo Bar sandwich may not be the towering meat cake familiar to lovers of New York deli but, true to its roots in a city that, as the 2014 documentary "Deli Man" points out, once had 1,550 registered kosher delicatessens, it is house-brined, served with melted Swiss cheese on marble rye and comes with a pickle and a side of coleslaw.
It is strange that "melted Swiss cheese" is cited as evidence that the Polo Bar corned beef sandwich is "true" to the roots of a city that "once had 1,550 registered kosher delicatessens." A true kosher deli wouldn't let swiss cheese anywhere near a corned beef sandwich — it would violate the provision of Jewish law that forbids mixing milk and meat.