Don't know how rare this is, but I found this serial number on a random brick in The End set : r/lego
Brick 1 x 4 with White 'RACING', Yellow '73', Black 'TEAM', and Green Number 1 Pattern : Part 3010pb015 | BrickLink
Identifying LEGO® set and part numbers - Help Topics - Customer Service - LEGO.com US
Number 6 from Plastic building blocks. Colored lego bricks isolated on white background. Vector 3d illustration. Stock Vector | Adobe Stock
LEGO Brick 2 x 6 with Numbers 2 and 3 Sticker (2456) | Brick Owl - LEGO Marketplace
LEGO Brick Labels v38 - BRICK ARCHITECT
Lego Brick Themed Numbers 1-20 Posters by Gilardi's Smarties | TPT
1x6 Plate, Lego® Part Number 3666 Trans-Yellow – Atlanta Brick Co
Amazon.com: LEGO Parts and Pieces: Red (Bright Red) 2x8 Brick x20 : Toys & Games
Alphabet Colorful Brick Block Toy Like Stock Vector (Royalty Free) 2024347892 | Shutterstock
Amazon.com: LEGO Parts and Pieces: Red (Bright Red) 1x8 Brick x10 : Toys & Games
3d Isometric White Number One from Lego Brick on Red Background. 3d Number from Lego Bricks. Realistic Number Stock Vector - Illustration of construction, concept: 110672127
lego brick number 3 | Leo Reynolds | Flickr
1 x 1 Bricks with Numbers (System) : Set 487-2 | BrickLink
2019 Most Common LEGO Parts - BRICK ARCHITECT
Alphabet from colorful brick block toy like Lego. Brick numbers for children poster, banner, logo, print for LGBT. 1-9 Stock Vector | Adobe Stock
LEGO Ref.487 - 1x1 Bricks with Numbers
LEGO DUPLO Classic Brick Box Building Set with Storage 10913, Toy Car, Number Bricks and More, Learning Toys for Toddlers, Boys & Girls 18 Months Old - Walmart.com
BrickGun - Storage Labels
LEGO Brick Numbers by PAPERZIP | TPT
Tambov Russian Federation August 2020 Numbers 2021 Made Lego Bricks – Stock Editorial Photo © Rosinka79 #406531506
Colorful Lego Numbers 7,8,9from Plastic Building Lego Bricks. Colorful Vector Lego Numbers . Black Lego Background Stock Illustration - Illustration of puzzle, color: 108441558
Creating number 8 from Lego Brick Stock Photo - Alamy
Colorful Lego Numbers 789 Plastic Building Stock Vector (Royalty Free) 792573355 | Shutterstock
Build LEGO Numbers - Little Bins for Little Hands
Hidden Math: The Numbers That Make LEGO Work - BrickNerd - All things LEGO and the LEGO fan community
Amazon.com: LEGO Parts and Pieces: Red (Bright Red) 1x6 Brick x20 : Toys & Games
