Dahlke envelope

English

Etymology

After its designer Benjamin Dahlke. In use in the late 1920s, the name was patented in 1929.

Pronunciation
  • IPA(key): /ˈdɑːlkə ˈɒnvəloʊp/, /ˈdɑːlkə ˈɛnvəloʊp/

Noun

Dahlke envelope (plural Dahlke envelopes)

  1. An airmail envelope with a distinct pattern of spaced diamonds in alternating red and blue colours around the outer edge
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