"Keep Mum, she's not so dumb" Mug and Coaster Set

This charming mug and coaster set celebrates a classic 1940s wartime slogan with wit and nostalgia. The iconic "Keep Mum, she's not so dumb" phrase, originally part of Britain's WWII security campaign, brings historical character to your daily routine. Crafted as a coordinated pair, the matching design ensures a cohesive look whether displayed on your desk or gifted to history enthusiasts. Perfect for tea lovers who appreciate vintage humour and cultural heritage, this set combines practicality with conversation-starting appeal. A thoughtful present for those who value retro aesthetics and British wartime memorabilia.