1949 Liner 22′

California | 1NNN (about 1280 to 1430)
Pipe-Frame Chassis
Production still at 1755 N. Main St., L.A.

In 1949 by s/n 1284, the brass plate gave way to the more common aluminum Airstream Wave plate.
The 1951 in the plate is thought to refer to Model #19 made in May (5) with the layout of “1” (unknown).