The suffragettes became famous for protest, chaining themselves to railings, setting fire to post boxes, smashing windows and detonating bombs. From 1912 to 1914, a series of arson attacks and bomb explosions happened across the country. Hundreds of letter boxes were set alight across the City of London by tipping in burning acids and liquids. Shop windows were smashed, telephone lines were cut, and graffiti and posters were placed on any free space. The milk tin bomb displayed at the City of London Police Museum is a home-made bomb found near the Bank of England. The evidence suggests it was made by suffragettes.