Dahlke envelope

名词 n.

英文释义

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

词形变化

Dahlke envelopes plural

词源

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