Most of this part of Buckingham was destroyed by fire in 1725. When bricklayer Henry Clements built this house he laid an ammonite into the window casing to the left of the front door.
What is Ammonite?
Ammonite is a type of fossil; they are remains of sea creatures from 66-201 million years old. Lots of scientists and ordinary people were interested in them when Henry was alive.
Ammonite can be found on beaches all over the UK. This might explain where Henry found this fossil! The ammonite is probably the oldest architectural feature in Buckingham.
With thanks to #lovebuckingham for the photo of Buckingham tailors