Airmail to Holland
Date: 21.04.1933 (not FDC)
Postmark: Balikpapan
Cachet: Plain with par avion mark
Stamp: Multi SG 330 – 331
Airmail to Holland
Date: 21.04.1933 (not FDC)
Postmark: Balikpapan
Cachet: Plain with par avion mark
Stamp: Multi SG 330 – 331