Before clocks arrived in England, sundials were being used to tell the time. However, even after the arrival of early clocks, sundials were still very important during the 16th and 17th centuries because the earliest domestic clocks prior to the invention of the pendulum were not always accurate, and so domestic clocks had to be reset regularly using sundials as a reference. The earliest lantern clock makers would often sell their clocks accompanied by a small brass sundial that was made by the clockmaker himself, or alternatively, for some of the more prestigious London clocks and wealthier clients, the sundial could have been made by a Mathematical Instrument Maker - Just like the wonderfully interesting  example shown below which is signed E.C’ and dated 1625. This fascinating early dial is the subject of my article and is illustrated alongside historically important events that happened during the year of 1625 which turned out to be one of the most historically important years in the history of the British monarchy. Also revealed is the identity of the sundial’s possible London maker who was living and working during the reign of Queen Elizabeth I in the late sixteenth century