This is a Marbled, Tie Dye 1970's Grangemouth, Scotland Test 2x4 LEGO® Brick

These are white with a red swirl and just a dash of yellow. One of the bricks only has a very small spot of yellow on the top and is sold as a separate option. The other bricks have a more prominent yellow swirl.

We have multiple bricks available and since they are marbled, each one is unique with different swirl patterns. Photos are stock photos and are not necessarily the brick you will receive but it is a good representation. 

These are F Mold Pat pend bricks from the 1970's made by the Borg Warner Factory in Grangemouth, Scotland. The Borg Warner factory made the ABS plastic pellets that they supplied to the Wrexham, Whales factory to make legit LEGO® bricks. In the 1960's, LEGO® gave the Borg Warner plant 2x4 brick molds so they could make test bricks to test their plastic pellets. The factory workers took the test bricks home and gave them to their kids and neighbors kids to play with. Factory workers made solid color test bricks along with some odd non-traditional LEGO® color test bricks. They even got a little crazy and made marbled bricks by mixing multiple colors together. The majority of the Grangemouth bricks found in the wild today came from local children's toy collections and are well used. Our bricks all have play wear on them including scratches, dents and dings. 

For a more details about the Grangemouth bricks, read our blog post on the subject!

Each brick is sold separately.