This lot of 20 vintage air mail envelopes is a unique collection from Taiwan and Hong Kong dating back to the 1970s. The envelopes feature a variety of designs and are perfect for collectors of British Colonies Territories stamps. Each envelope is in very fine condition and has not been certified. The envelopes were used for air mail and originate from Hong Kong (until 1997). They are a great addition to any stamp collection and provide a glimpse into the history of air mail communication between Taiwan and Hong Kong.