Exercise 3: sample answer

Your answer depends on the clock you find. In Edinburgh, good candidates are the clocks on the tower of St Giles' Cathedral, the Balmoral Hotel (famously set a few minutes fast, a long-standing tradition; check) and the Tron Kirk. Most public clocks you will find are Victorian or later, not medieval, and many have since been converted to electric drive.

Example write-up: "The church clock has a four-sided dial and a bell. A plaque inside the porch says it was installed in 1880, and a parish history says the mechanism was converted to electric winding in the 1960s. The dial and case are original but the motor is modern, so it is only partly the original mechanism."

Useful sources: a plaque on the building, the church or council website, local history societies, and museum collections for the maker's name.