This set of DH4 wings I find interesting for 2 reasons.
First, it gives a very good idea of how to rig the Jenny 4A double aileron wings using steel cables instead of struts.
Second, it shows one of two methods used to rig the wings .Here the wings have been rigged seperately from the airplane and were installed as a complete unit with only fine tuning of the rigging to be completed after installation..The other method was to build up the wings on the airplane itself by assembling the upper panels to the center section and then complete the assembly.
The first method was considered the better ,as it permitted the setting of the main panels at the correct stagger and dihedral,requiring less later adjustment than the second method.