The Gyrofly was the first parachute fly to appear in this country, and was patented by William Avery Brush, from Detroit, in 1934. I'll do a Just Old Flies article on them soon.
Eric
The Gyrofly
The Gyrofly was the first parachute fly to appear in this country, and was patented by William Avery Brush, from Detroit, in 1934. I'll do a Just Old Flies article on them soon.
Eric
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