![](https://coimages.sciencemuseumgroup.org.uk/8/497/large_thumbnail_pic_1999_8303.jpg)
Pee Wee portable warning case, British Rail
![Pee Wee portable warning case, British Rail](https://coimages.sciencemuseumgroup.org.uk/15/953/pic_2008_8865.jpg)
Pee Wee portable warning case, prototype, yellow, ABS vacuum formed, designed by Denver Brown, British Rail Research and Development Divisions' Plastic Development Unit.
Pee Wee portable warning case, prototype, yellow, ABS vacuum formed, designed by Denver Brown, British Rail Research and Development Divisions' Plastic Development Unit.