Park Avenue unfurls in a blaze of linen-era color — scarlet and amber flower beds cascade down the median while the colossal New York Central Building (today the Helmsley Building) commands the vanishing point, its copper-green pyramid crown glinting above 34 stories of Beaux-Arts limestone, and 1930s automobiles glide silently through the archways that funnel traffic around Grand Central Terminal below — a postcard that captures Midtown Manhattan at the precise apex of its pre-war confidence and grandeur. Published by Frank E. Cooper of 258 Broadway, New York, and produced by the legendary Curt Teich & Co. of Chicago in their "Art Colortone" linen process (catalog 3A-H105), this card carries the period instruction "Place One Cent Stamp Here," dating it to the U.S. domestic postcard rate that held from 1928 to 1952, consistent with the linen era's peak production years of the late 1930s. The reverse description notes the building's remarkable footprint spanning 45th to 46th Streets, with Park Avenue traffic routed directly through the structure via viaduct ramps — an engineering marvel that still astonishes visitors today.