Online, sitting alongside the Plotting Plymouth's Past webpages, is a similar site for Plymouth City Plaques - but not all stones fit neatly into either of these two categories. A boundary stone depicts a property boundary; a commemorative plaque, generally added later, traditionally associates a person or an event with a specific location.
Foundation stones and opening plaques are different again - normally contemporary with the building or structure and often incorporated into the original fabric. Some simply denote ownership and/or the date of erection - in some ways mirroring certain boundary stones. A good group of such stones can be seen only from the water at Cattedown Wharves (DS CD). View all date stones.
See our historical plaques page for more about commemorative plaques in the city.