6956 MTRON 6981 BLACKTRON 8062 Technic This is a set of 3 items with boxes. They were purchased in America about 30 years ago. I didn't play with them much and kept them stored away, so I think the condition is not bad for their age. I believe these are rare LEGO sets that are not often found with their boxes. Please refer to the images for the condition. When I assembled them once with my child 2 years ago, all the parts were there, so I don't think anything is missing. However, there is a possibility that some parts may have been lost during storage, so please understand this before purchasing. The boxes and instruction manuals have damage.