“Many other products, while not rationed, were nonetheless in short supply. A visiting American found that he could buy chocolate cake and a lemon meringue pie at Selfridges, but cocoa was impossible to find. Shortages made some realms of hygiene more problematic. Women found tampons increasingly difficult to acquire. At least one brand of toilet paper was also in perilously short supply, as the king himself discovered. He managed to sidestep this particular scarcity by arranging shipments direct from the British embassy in Washington, D.C. With kingly discretion, he wrote to his ambassador, “We are getting short of a certain type of paper which is made in America and is unprocurable here. A packet or two of 500 sheets at intervals would be most acceptable. You will understand this and its name begins with B!!!” The paper in question was identified by historian Andrew Roberts as Bromo soft lavatory paper.”
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Erik Larson,
The Splendid and the Vile: A Saga of Churchill, Family, and Defiance During the Blitz