This beautiful thing is a "Pop" Brennan 6 day bike.
Built in the 1920's
John "Pop Brennan's shop was in Irvington, NJ
just a few blocks from the site of the old Newark Velodrome.
The frame was recovered from a basement of a house
who's owner was rumored to have raced in either the 1928 or '32 Olympics.

It's in my studio, on generous loan from Eddie Albert.