William E Stoelk,
Manning IA
USA
Wendel G Hacker,
Templeton IA.
USA
In 1930 built the Hacker single place, open cockpit, high wing monoplane.
Stoelk & Hacker
William E Stoelk,
Manning IA
USA
Wendel G Hacker,
Templeton IA.
USA
In 1930 built the Hacker single place, open cockpit, high wing monoplane.
All Aero 