![George Gilliatt on Twitter: "Exclusive from the new issue of LEGO Life magazine: instructions to build a secret model from the extra pieces in 11021 90 Years of Play, based on the George Gilliatt on Twitter: "Exclusive from the new issue of LEGO Life magazine: instructions to build a secret model from the extra pieces in 11021 90 Years of Play, based on the](https://pbs.twimg.com/media/FXUUFTBWYAI1gWa.jpg:large)
George Gilliatt on Twitter: "Exclusive from the new issue of LEGO Life magazine: instructions to build a secret model from the extra pieces in 11021 90 Years of Play, based on the
5 Complete Retired Rare Lego Beach Themed Sets with boxes and manuals, excellent condition - Building Sets | Facebook Marketplace | Facebook
![history - What was the purpose of the triangular corner marking and the "points" in Lego instructions starting around 1992? - Bricks history - What was the purpose of the triangular corner marking and the "points" in Lego instructions starting around 1992? - Bricks](https://i.stack.imgur.com/siKnY.png)