This is the Lego Star Wars: AT-AT (4483) from 2003. This set is 100% complete with no pieces missing from the AT-AT walker, all the mini-figures fully intact, and even the box and instructions in good condition. There's no visible damage to this set as it was built once and then kept that way since it was bought over 20 years ago.

It has been stored away in a smoke free and pet free area in a cool, dry, dark place. As the owner of it since I was a child, I treated it with the utmost care and love and guarantee there's no damage to the set or any of its mini-figures. I cared for my LEGOs more like pieces in a museum than the toys they are. Why? Because I was weird, but my weirdness has paid off for whoever is the lucky buyer of this set. It even has the extra pieces that typically come with Lego sets at the bottom of the box, so you're virtually getting the New in Box experience.

I'll disassemble this set when purchased and carefully place the pieces in Ziploc bags to be shipped in the original box. Feel free to ask me for any more pictures or evidence of this set's condition. And stay tuned for other great sets from this era that I'll be posting in the near future in the same condition (100% complete with all mini-figures, boxes, and instructions).