Lego Back to the Future 21103 Rare Retired Sealed but box showing wear. Box has never been opened but it is showing signs of wear and tear especially on the reverse of the box.If you would like to see more photos please let me know. Any questions please message me. The item "Lego Back to the Future 21103 Rare Retired Sealed but box showing wear" is in sale since Monday, April 19, 2021. This item is in the category "Toys & Games\Construction & Building Toys\LEGO Building Toys\LEGO Complete Sets & Packs". The seller is "lovegadgetz" and is located in London. This item can be shipped to United Kingdom.