British West Indies. (Trinidad - Argentina). 1941. Registered Air Mail envelope addressed to Boston bearing Argentina Yvert 368, 5c red-brown (3), Yvert 372, 20c blue and Yvert 336, 1p brown and blue tied by Los Chachas date stamp with framed hand-struck 'R/ Las Chachas', routed via Trinidad with 'Opened by Examiner/ 104' censor tape. Lovely item.