While I mainly collect FDC's, I keep my eyes open for any interesting or unusual covers with US airmail or aviation themed postage. So when I saw the following, it caught my eye:


The hand drawing on the cover is unusual (in my experience) for this early date. One always has to watch out for hand drawings on covers added later, but that doesn't appear likely here. First, it would be odd to choose such an unusual cover for an addon cachet. Second, the sideways rubber stamped cachet on the front, and the ornate script, seem to be placed after the aircraft image was already on cover.
According to the American Air Mail Catalog, this first flight, 9W8, had no USPO official cachet, and the Milwaukee Association of Commerce cachet shown on the front, and the back, is not documented in the catalog.
I presume the aircraft is supposed to be a Ford Trimotor.
The images are from the auction. I don't have the cover in hand yet. But I can hardly wait to receive it.
Basil