The rancher loaded up all his employees on the truck to take them out to the field so they could count all the blades of grass for year end inventory.
Is the photo flipped, or is it in Britstralia ?
Delightful photo. There isn't much left/right evidence to go on. I think I can make out the shifters showing on the correct side of the Harley tank. That would make the TT right hand drive and a left side sidecar.
The parasol held to the left would indicate the sun is in the Northern sky. The left hand chair on the motor cycle is consistent with this. So is the RHD T truck. Going on the perfectly flat horizon, perhaps they are out on the Hay Plains, piled up on the truck, looking for a landmark!
Allan from down under