Can anyone Identify this FLY FAIR seaplane?
That is a Sikorsky S-38B
I am not sure about the registration. My guess is NC196H, but it is one out of this list:

NC158H,
NC159H,
NC195H,
NC196H,
NC197H,
NC198H,
NC199H,

See aircrafthistory.org.uk
The FLY FAIR marking may be a reference to the 1933/1934 Chicago World Fair / &quot;A Century of Progress International Exposition&quot;. Jamiec found this photo album by George Buivid on auction that documents a trip to the Chicago World Fair in Sikorsky's own S-38 aircraft:


Picture source: Flyingclippers.com Artist: Mike Machat 

source: Wikipedia original source: NACA Aircraft Circular No.79