I found this photograph at a car boot sale recently. It came with some postcards. I am wondering what sort of people they are. So far, I have imagined they might be prospectors, explorers, quarrymen, but I don't think they are cowboys. Can anyone suggest what their occupation might be? Click once and then again for a close up view. I first thought the location was America, but it might be Australia. Why? Well, the chap on the right of the three blokes at the rear seems to be wearing an Aussie hat, but the man on the extreme right (front) looks is wearing a pith helmet - sometimes known as a sola topee.