Here is a RPPC with no information given on the back. I call it "Baby Takes Wing." I can almost see the anxious bouncing, arms outstretched, ears/flaps up reading for crosswinds. Its little engine is revving knowing in just a moment it will be able to take flight across the studio and fly around and around up at the ceiling. Mother has other plans. Father is thinking that yes, it would be fun to fly. And the photographer? Oh, the poor photographer is wishing his day would be filled with sleeping nonmoving babies so that he wouldn't need to keep doing re-dos because the little dears are constantly blurred.
This is another image from Bert's collection.
Fly baby, fly!!!