"they generally had pictures on the box of posh-looking kids with school caps and looking all rosy-cheeked and having a jolly good time."
Benwell firework box
Permission Granted by Copyright Owner for Use on Book DrumBenwell firework box - Credit: Martin Weselby

The street kids of the 1950s would not buy pre-selected boxes of fireworks like these; they couldn't afford a box at a time, and anyway preferred to choose their own and buy them loose.