Netherlands Indies. (Japanese Occupation in Java). 1942. Envelope addressed to Batavia bearing Japanese Occupation in Java SG 465, 5c blue tied by Batavia Central date stamp '27th Nov 42' with hand-stamp 'Kao Yoo' (Official Mail) with framed 'Ken'etsuzumi' (censored) with oval censor seal in orange and instructional 'Kembali Pada Sipengirim' (Return to Sender) on face.