Lot 90053 – 1917-31, Group of three covers incl. 1931 Kingsford-Smith signed FDC and first flight to Java

1917-31, Three covers incl. 1917 (Oct 24) « First Overland Mail by Trans-Continental » illustrated cover from Perth to England with KGV 1d, 1931 (Mar 19) Kingsford-Smith 2d & 3d first day cover signed by Kingsford-Smith (also a separate piece with his autograph) and the pilot, 1931 (May 19) Australia-Netherlands Indies first flight cover to Batavia with multiple Kingsford-Smith issue franking, a fine group.