HONG KONG. 1940 airmail cover to UK, franked by 1938 15c.scarlet and $1 dull lilac & blue tied by ‘Victoria - Hong Kong’ c.d.s. (May 27) with triangular PASSED / BY / CENSOR / 120 and reverse showing very rare HEADQUARTERS / SHANGHAI &TIENTSIN AREA / PASSED BY CENSOR handstamp in violet, countersigned by a Lieutenant in ink. SG 146,155. (Photo). Est. 200 - 300 CHF.