A very nice 1973 Blue Box Meccano Set No 4. The set is complete, in used but good condition and still has all of the plastic retainers and the original plastic Meccano embossed screws box. Original instructions are present and the outer box has moderate age wear but is also complete and intact. The inner polystyrene parts tray is good with signs of use but no cracks or missing sections. A good collectable set.