Saks & Company operated out of a Broadway and 34th Street structure between 1902 and 1924. In 1922, said store was promoting a new line of hats; an accessory for only the most dapper gentleman. 

Advert from Saks & Company  

Saks & Company merged with Gimbels Brothers in 1923. The existing Saks store would be operated as Saks-34th Street. A new -more upscale- division used the address of its first store as its corporate moniker. Saks Fifth Avenue's Manhattan flagship rang up its first sale in September 1924.

Photo from Wikipedia / Ajay Suresh

Saks Fifth Avenue opened its fifth branch store -in Miami Beach- in 1939.

Photo from Library of Congress

The PHIPPS PLAZA Saks -in Atlanta- was officially dedicated in August 1968.

Photo from www.simon.com / Simon Property Group