In my hello post in the Welcome section I promised to post pictures of engines made in our father's workshop by my twin brother and me as kids. To post the picture I have tried to follow the instructions in the first topic of the Photos and Videos section - hope it works. It shows two double acting engines: a vertical engine with a slide valve and a smaller oscillating engine. This latter, together with a boiler and spirit burners, powered a 3ft model tug which chuffed slowly around our town's swimming pool.