Used set. Items in good condition. Some items have been replaced to different color / type. These are the following: 3 pcs of tan 4526771 parts have been replaced to dark gray or dark bluish gray parts; 2 pcs of 4159774 parts have been replaced to dark gray or dark bluish gray parts. Missing parts: 1 piece of 4528377 (it's requested only for the building of Model B). Instructions in good condition. Very worn box. Stickers in good condition sticked on the set. The set is incomplete!