Had this photo plus front view as 10x8's for some time (from G Stuart Leslie)
In my opinion, even though this is a very early DIII only three away from 1366/17, a 'typenprufung' aircraft, the lower wing does perhaps appear to be faded lozenge, or perhaps a replacement silbergrau panel. Notice that the interplane struts on this aircraft are cross braced, totally (apparently) unique, everyone else it would seem, was of the opinion that the 'U' strut was up to the job - a 'Flugpark' mod?, can't see them doing this at Jasta level, although not impossible. The turnbuckles can be seen mid wire length and in the front view run to the outside of the base of the strut. Maybe this was a school or Flugpark 'hack' machine. Note also no Pfalz trademark decal or bestellnummer anywhere on the tail unit so this overpainted, white pernaps?. Strut cross bracing appears to be pre upper wingtip probs as this aircraft has no wingtip bracing wires which ran to slightly different points near to upper wingtip on DIII before being a factory fitment on DIIIa, or maybe this aircraft just never had them fitted.
Cheers, AL.