The first company to sell crisps commercially was The Smiths Potato Crisps Company Ltd, founded in Cricklewood, London in 1920 by Frank Smith and Jim Viney. They provided a twist of salt with their crisps, which were sold in London in greaseproof paper bags. Originally branded as Salt ’n’ Shake crisps, plain crisps with optional salt are still sold today.
Museum of Crisps 