At last, a trade that was entirely new when Derry and Toms was built, although the plane with its open cockpit, fixed undercarriage and manual starting (chocks away, Ginger!) already give the image a nostalgic, primeval atmosphere.
It is not entirely clear what the guys below are doing. They seem to be baling something, wool perhaps? The worker with his back to us is tending some sort of machine while his mate is hauling a huge bag away.