LEGO - An earlier version of our beloved brick! Not fully evolved in to the brick we know and love today, this brick did not have the system in which the pieces
![LEGO Set 700.1.2-1 Single 2 x 2 Brick (ABB) (1950 System > Supplemental) | Rebrickable - Build with LEGO LEGO Set 700.1.2-1 Single 2 x 2 Brick (ABB) (1950 System > Supplemental) | Rebrickable - Build with LEGO](https://cdn.rebrickable.com/media/thumbs/sets/700.1.2-1/9968.jpg/1000x800p.jpg)
LEGO Set 700.1.2-1 Single 2 x 2 Brick (ABB) (1950 System > Supplemental) | Rebrickable - Build with LEGO
![LEGO on Twitter: "Before the trademark tubes that click, our plastic bricks were hollow! #TransformationTuesday https://t.co/ICBV6nxkMX" / Twitter LEGO on Twitter: "Before the trademark tubes that click, our plastic bricks were hollow! #TransformationTuesday https://t.co/ICBV6nxkMX" / Twitter](https://pbs.twimg.com/media/E_Qt-azXsAYAL2C.jpg)