TIffany & Co. has been celebrating 175 years this year. The company was founded on September 18th, 1937 in New York City (tomorrow is the exact 175th birthday!) Did you know that in 1845 Tiffany & Co. was the first in the U.S. to send a mail-order catalogue in full color? It was called the “Tiffany Blue Book” (pictured above). It’s said that soon after the company was founded they adopted the blue color that is now associated with Tiffany & Co. for all their bags, catalogues and boxes and it became part of their branding.