Old Morse Code - Error Code Flag

Before WWII the US Navy a special type of Morse Code flags that used the three colours to represent Morse Code.  Red was the DIT, Yellow was the DAH, and blue was the Repeater-Sub that depended on the preceding colour towards the hoist.

Thus using this old US Navy Code a Morse Code Error flag can be represented.  It has eight stripes for the eight DITS of the Error Message.  Since it is only uses DITS red and blue are used.