411 REFERENCE · Wiktionary
Dahlke envelope
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
After its designer Benjamin Dahlke. In use in the late 1920s, the name was patented in 1929.
Pronunciation
en /ˈdɑːlkə ˈɒnvəloʊp/ /ˈdɑːlkə ˈɛnvəloʊp/
Noun
An airmail envelope with a distinct pattern of spaced diamonds in alternating red and blue colours around the outer edge.
en eponyms