That is a n Old Reese hitch. That said you do not want to use it on an Airstrean because it is not an adjustable head as far as tilt back and height is concerned.
The type of axles used on an Airstream require the the trailer ride parallel to the ground and the likely hood you will hit that on the nose with that welded head is slim to none.
As mentioned above it is also missing the sway control cams.
The bars are not the ones necessary for a WD hitch.
WBCCI 12156 AIR 3144 WACHUNG TAC NJ6
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles