Edward Purkis Frost (1842--1922) was an English pioneer of aviation who build ornithopters and became president of the Aeronautical Society.
He built ornithopters and became president of the Aeronautical Society. Edward Purkis Frost (1842--1922) was an English pioneer of aviation.
Edward Purkis Frost (1842--1922) was an English pioneer of aviation. He built ornithopters and became president of the Aeronautical Society.
Edward Purkis Frost (1842--1922) was an English pioneer of aviation. He built ornithopters and became president of the Aeronautical Society.