Northern Territory: Collection of covers with extensive range of Field POs, apparently all different datestamp or allocation, Army POs include Unit Postal Station 345, 349, 356, 357, 418, 420 and 13 rubber types, Air Force 20 - 28, Navy PO 1 (cds and handstamp), Base PO 7, MD 017 and 018, rare RAAF Postal Unit No 7 (no listing by Proud, date error '1954' for '1942') and 1944 registered with poor or fair strikes of rare double oval 'C.A.L. of C. Postal Unit/Alices Springs', a few faults (48 covers and 3 fronts)