Most village post offices sold post cards (and other stationery) but the majority were printed cards (often coloured) with their name added to the back - as the examples below - and it is often unclear who the actual photographer was. However the four cards shown above are real photographs with "Dunckley, Essendon" written on the negative - suggesting that Leonard was the photographer. As he had previously worked as an assistant drug sundriesman he would almost certainly been involved in selling photographic materials to chemists shops and  this strengthens the case for him being a competent amateur photographer who produced the real photographic cards he sold in his post office.