Netherlands, Kingdom. A Royal Netherlands Air Force Plaque Heer. A Flak Artillery Hauptmann’s Service Tunic When not in use the When not in use the panels are rolled up and secured in place at the front by two black bakelite buttons which emanate from the right panel and meet an equal number of reinforced buttonholes on the left panel with all four cords joined at six positions within a 26 mm x 28 mm fine aluminum wire patch and slotted in the centre for placement around a button on the shoulder The aerobatic display team of the Royal Netherlands Air Force Footnote: The Royal Netherlands Air Force (RNLAF) is the military aviation branch of the Netherlands Armed Forces