Nice, older INDONESIA First Day Cover FDC -- Sc No. 445-449 complete set. Hard to find on cover. from April 9, 1958. National Aviation Day, racing. Mailed to Germany. Reichenbach im Vogtland, D.D.R. East Germany. Registered.   Oversized envelope measures 8-1/16 inches by 4-1/2 inches. 

  Nice cancels and cachet. See 2 pictures. 

Note that Ebay is charging sales tax on some, or all items? I do not receive any of this money; it goes straight to Ebay. The tax is additional to my charges. 

Pay by PAYPAL. I will combine purchases to reduce shipping charges. If buying more than one item, ask for invoice and wait until invoiced to receive discount on shipping.