This is the Curtiss Model CB
, where CB is believed to stand for Curtiss Battleplane
. It was built in 1918 as a successor for the unsuccesfull Liberty-powered Bristol Fighter.
Colin is right, the structure is an example of a monocoque fuselage where Curtiss used two layers of two-inch wide wood veneer which were cross-laminated over a form to build the monocoque fuselage.
Machine was not succesful as it crashed early in the test period. This is probably the only known picture of this rarity, would like to see others of it