Hollow Brick Identification Chart
Here is the chart use to separate my hollow bricks by mold version. More molds might exist, and I will …
2×4 Bricks
The best of them all, the iconic 2×4 LEGO® brick! Also the oldest (together with the 2×2 brick.)
Moving Molds
Looking at the slotted bricks we found in Denmark, Sweden and Norway, I think the molds probably moved like this. …
9 – Blockletter logo, scratched mold numbers
My (temporary) mold version number: 9 Logo: Blockletter logo with a long bar on the G inside. Material: Cellulose acetate (CA). Slot …
11 – Dogbone logo, with 4 ejectorpin marks
My (temporary) mold version number: 11. Logo: Dogbone logo inside. Material: Cellulose acetate (CA). Slot positions: bslot04, bslot04a. Inner ribs: None. Mold numbers: Machine-engraved mold …
1 – No Logo
My (temporary) mold version number: 1 First version of the LEGO 2×4 brick, based on Kiddicraft by Hilary Page. Logo: No …
Main Timeline of 2×4 Mold Versions (No Complete Overview)
This is a quick image I created to answer a few questions. It gives an overview of the main mold …
LEGO: Hollow 2×4 bricks
All currently known colors of the hollow 2×4 bricks. The green ones are rare, the yellow and blue are also …
LEGO: Bayer Trans-Green
Most likely these were used to discuss the greenness of LEGO trans-green bricks. The top right one comes close to …
3x Same Molding Mistake
3 bricks, most likely from the same mold. Old logo, pat.pend, even the same mold number, number 1. Richard has …
Extended Studs
On the right is a normal LEGO brick, on the left one with extended studs. It’s a Samsonite retooled brick. …