English: English: A fin flash often takes the form of vertical, horizontal or slanted stripes in the same colours as the main insignia, and may be referred to as "rudder stripes" if they appear on the rudder instead of the fin.
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This image of simple geometry is ineligible for copyright and therefore in the public domain, because it consists entirely of information that is common property and contains no original authorship.
Captions
Fin Flash of the Indian Air Force from 1943 to 1945