New York Times reporter David W. Dunlap writes about stones from the Hudson River Railroad embankment dating back to the 1840s that have been identified in the privately owned public space at 75 West End Avenue owned by the Brodsky Organization.  Designer Quennel Rothschild & Partners originally incorporated the stones into the POPS years ago.  Dan Brodsky, senior partner of the Brodsky Organization, responded favorably to urban archaeologist Joan Geismar’s proposal to install an identification sign for the stones which, happily, was designed by Geismar’s husband, graphic designer Tom Geismar.