Now appearing on many sites, this vintage (1936) promotional ad for the Willesden Electricity Dept. (in northwest London):
The (presumably) intended reading is that it is anaphoric to work; ‘let electricity do the work’. But do it is a VP anaphor as a whole, so that the reading ‘let electricity kill your wife’ is only too easy to get.
The caption identifies the source as the Milne Museum — the Milne Electrical Collection at the Amberley Museum in West Sussex.
