The modern concept of the “piggy bank”, first popularised ... have been influenced by the animal sense of pig, because a few items, such as ceramic hot-water bottles, are smoothly rounded ...

Earlier in the year, I was at an auction and up came a lot I hadn't clocked beforehand - a set of NatWest ceramic piggy banks. I was born in the 1980s and work in finance, but never had the pigs ...