These are used by Lego designers when creating future sets. The small numbers refer to the Lego colour number. The tiles themselves are just 2x2 tiles but of course in very rare colours. This specific palette is believed to have originated in 2022 from the US. These palettes are EXTREMELY rare to find out in the wild and certainly the most expensive item in my Lego collection. submitted by /u/Prometheus78901 [link] [comments]
