knil_22.jpeg N3-603 121 Squadron TjililitanThumbnailsP-51 being serviced MedanN3-603 121 Squadron TjililitanThumbnailsP-51 being serviced MedanN3-603 121 Squadron TjililitanThumbnailsP-51 being serviced MedanN3-603 121 Squadron TjililitanThumbnailsP-51 being serviced Medan
Plane N3-603
121 Squadron (all KNIL)

Top row (R toLR): Armory unknown; De Bruin (mechanic); Corporal unknown; Civilian, but might have been KNIL unknown
Bottom row (R to L): Kalden; van Trier (ploegbas, my dad’s boss); KNIL (dutch) unknown; Copi

Each ploegbas was responsible for 4 planes.