BASF Test Brick – V – Phase 2 With Hollow Studs
Logo: Modern logo Material: ABS Inner ribs: none Inner tubes: with rounded bottom Flowrib / center line inside top surface: …
Test
Test bricks were (and are) made internally by TLG or externally by chemical companies to test some properties of the brick.
Bayer Old Logo, Mold No 15
With a hole in the bottom left stud. One of two hole bricks I found in this lot. Seems, someone …
Bayer Old Logo
After LEGO introduced the new brick design with the tube connection in 1958 they continued to search for improvements on …
Comparing German and Danish 8xc Bricks Without Mold Number
On the left (brown and yellow) German bricks. On the right (blue) bricks found in Denmark. The (recurring) small mold …
Danish 8xc Without Mold Number
German 8xc bricks without mold number have been known for years. Recently we found out that there was a similar …
LEGO Test Brick – “I” Above and Inside Tubes – Modulex Colors
These bricks could originate in two different molds, but because they are found together in Modulex colors it looks like …
LEGO 7xlogo + 1xFGHJKLMN
These bricks are probably Minitalia test bricks made by LEGO in Denmark. These bricks have the Minitalia version of the …
System Plast, Kolding, Denmark – Test bricks
Thanks to Fantastic Brick and FraSprea for exploring the history of System Plast at Kolding. The following information was available on the history page on …
Suspected and Known Origins of Test Bricks
We currently know (or strongly suspect) that test bricks were made and used at the following locations. Links to albums …
Quick Reference Guide – Is This a Test Brick?
“Is the brick I found special?” Part numbers: 3001old, 3001 and 3001special as used on BrickLink (but excluding the 3001oldf1 …