According to the store's Facebook page:
John Cortese's father started the Golden Gate as a fruit and vegetable cart on the streets of Brooklyn in 1939. It has been run by John Cortese ever since, with the help of his son and daughter, as a storefront in the Marine Park section of Brooklyn.Here's a peek inside.
(Note the old telephone exchange name in the phone number listed on the sign: ESplanade 7-2581.)