China. (Trans - Pacific Mail). 1941. Air Mail envelope addressed to Amsterdam, Netherlands bearing SG 423, 25c orange, SG 431, $5 carmine, SG 517, 15c maroon and SG 593, 50c blue tied by Shanghai date stamp '1st July 41', endorsed 'By Pan America Airways via U.S.A.' with German censor tape tied by circular censor cachet in red on reverse and Amsterdam arrival on face. Nice item of Trans-Pacific Mail.