I recall a trip to England in 2000 with an NAWCC group, visiting tower clocks. We saw 38 tower clocks in 11 days. The oldest clocks were likely mid 18th century. Several (Salisbury Cathedral) were much earlier than that. A lot of these clocks had been installed in ancient churches in which there was no room for a clock when the church was built. A lot of these churches had clocks fitted later on, and this gave rise to some very unusual placements for these clocks. There were occasions where we had to “slither” through tight openings, in order to view the clock.