I hadn't seen this one before. It's in a series labeled 'Pursuit School at Victoria, Texas'. I had to flip the photo and I lightened it a bit. Sure is a pretty line up! All the other photos I saw in that series were of people pursuing other interests.
Interesting to see the two different cowl colors.
I am but mad north-north-west: when the wind is southerly I know a hawk from a handsaw. - Hamlet