I’ve always been a big fan of Desco Vacuum’s old-school store signage on 14th Street between Seventh and Eighth Avenues.
The vertical sign feels very 1970s. Plus, how many vacuum cleaners are advertised in neon these days?
The sign maker is Boro Sign, located in Borough Park.
TR likely stood for Triangle, which covered parts of Brooklyn, according to this wonderful chart.
There’s also TR for Trafalgar, in Manhattan, and TR for Tremont, in the Bronx.