I was about 8 and my brother 6 when we were presented with a Christmas present in a large leatherette covered chest. We opened it to find a Triang clockwork train set - with a difference. Dad had made everything but the engine and carriages. Trackbed was green painted ply, cardboard sleepers, proper rails in chairs, fishplates to join the sections. He had made buildings, trucks, guards van. Uncoupling hooks were modified tiny water-colour type paint brushes. He had even made from scratch working station luggage scales. We played with it for a few years until other interests took over, but I know we never fully appreciated the hours and patience that had gone into its construction. So belatedly (about 62 years late) "Thanks, Dad. it was a work of love" (Lot of dust about this morning) Guess that is what happened when someone opens the Pandora's Box of memories - you never know what will pop out . and MPN - you are so right about the roofs of Bayco projects!