When you are 6 years old it is almost impossibly difficult to understand 350 years ago. I regularly told my pupils I was one hundred and eighty three on my birthday … and some of them believed me. Props and artefacts help put it all in context. That is the reason I give for wearing my kirtle when running my Great Fire of London session and it was the perfect reason to buy a Sun fire plaque to show children when I visit. After the Great Fire insurance companies set up schemes where people protected their properties by paying for fire fighters. They showed their participation in the system by having a lead plaque on their wall, such as this one belonging to the Sun Company (which evolved into Sun Alliance Insurance). That is half the story. Tomorrow I’m heading into the London Metropolitan Archives to try and find out the next part of the puzzle – who had this particular plaque?