I tried once before to point this out about the inventors of the ComparaDun fly pattern.
Below is the final paragraph from their 1975 book ?? https://i.ibb.co/s9xQmWH/2-B20580-A-...1-C6992-A7.jpg
https://i.ibb.co/gV0xmg4/CB77-E5-E7-...FA7-C48-E4.jpg