The WSPU had always announced militant demonstrations well in advance. On 1 March 1912, for the first time, the Union struck without warning: about 150 women were given hammers, told exactly which windows to break, when to break them, and how to hit panes low so that glass would not fall from above. At 5.45 p.m. in Oxford Street, Regent Street, the Strand, and other prominent thoroughfares, well-dressed women produced hammers from handbags and began to smash windows. The firms whose windows were damaged included Burberry's, Liberty's, Marshall & Snelgrove, and Kodak. Foreign firms were not exempt - windows were broken at the offices of the Canadian Pacific, the Grand Trunk Railway, and Norddeutscher Lloyd. Police arrested 124 women. The damage was estimated at £5,000.