So, the set for Courage in the Upside-down World is essentially complete – which is great for blocking rehearsals! Everything is quite portable and easy to transport. There’s a small hat rack, some crates and trunks, a stepladder, a stool and an easel. Over half a dozen large canvass “flags” are pinned to the easel to represent different stages of Katherine Stinson’s story.

Set pieces are inspired by photographs and primary sources - like the above logo,which appeared on Stinson's planes.
The whole production has a red, white, blue and neutral color scheme. There are still a few important props to construct, and the costumes need a few stitches here and there, but as far as rehearsal purposes go, we have everything we need.
Below is an excerpt from a 1953 short called “The World Through Stamps.” It mentions the first airmail stamp – which has an important role in the play! Also, take note of the jenny looping the loop near the end of the video.

[...] So, the set for Courage in the Upside-down World is essentially complete – which is great for blocking rehearsals! Everything is quite portable and easy to transport. There's a small hatrack, some crates and trunks, a stepladder, a stool and an easel. Over half a dozen large canvass "flags" are pinned to the easel to represent different stages of Katherine Stinson's story.