11. A propeller-driven aircraft with a hangar and vehicles around it Date: unknown Format: Still image Access: Public
12. A row of propeller-driven aircraft with a group of men checking the engine of one Date: unknown Format: Still image Access: Public
13. Some men around a large propeller-driven aircraft next to a row of smaller ones Date: unknown Format: Still image Access: Public
14. Three men around a tractor with an airplane and hangar in the background Date: unknown Format: Still image Access: Public
15. Two men by a large propeller-driven aircraft with smaller ones behind it Date: unknown Format: Still image Access: Public
16. Two men looking at a large airplane propeller's engine Date: unknown Format: Still image Access: Public
17. Two soldiers in coats at an air base with some cars and a hangar Date: unknown Format: Still image Access: Public