Grooved/Corrugated Brick
The origin of these bricks is still unknown. As far as I know all known bricks come from the same …
Test
Test bricks were (and are) made internally by TLG or externally by chemical companies to test some properties of the brick.
2xABCD – Small Font G
Logo: None Material: ABS Inner ribs: none Inner tubes: with rounded bottom Flowrib / center line inside top surface: Yes. …
Bayer Test Bricks – 8xF and 7xF+E
These bricks were found in Bayer lots with 1xABCD, 7xC (05), 8xC (05 and void) and 8xf bricks. Material: ABS …
Danish (?) Test Bricks – Modern Logo – 351 to 358 Inside Tubes – Flexible
Topside of the flexible brick. The brick is made from a soft material. Deforming the flexible brick. The brick is …
Danish (?) Test Bricks – Modern Logo – 351 to 358 Inside Tubes
Another mold that found a new use after being used for the production of regular production bricks 🙂 Logo: Modern …
Bayer Modern Logo – 343 to 350 Inside Tubes
Logo: Modern logo. Material: ABS (solid), PP (transparent) Inner ribs: On the long and short sides. Visible as a frosted …
Test Bricks (and/or Q-Elements?) 3/09 to 3/16
This mold is still puzzling me. Regular production bricks seem to be found in the UK Dark brown bricks have …
Test Bricks from 2xABCD Mold F With LEGO Logo
These bricks have been on my lists since maxx3001 mentioned them years ago, and last week I finally got a …
Borg-Warner Amsterdam Test Brick 2xABCD Small Font – F
Logo: None Material: ABS Inner ribs: none Inner tubes: with rounded bottom Flowrib / center line inside top surface: Yes. …
UK Test Bricks of Unknown Origin
These M, N and P molds could have been used by Courtauld’s in Wrexham (licenced LEGO production) or by Borg-Warner …