Just for sharing/education I thought I would describe how I usually find the scales of things from photos, which I do a lot for my sculptures. Here’s one wall of the map room in the NY Public Library, I already know it’s 34 feet wide because I found that fact in an article, so I would first look around for something of known size, if an adult person is standing there you can use a rounded out 6 feet for the scale, in this case the only known size is the width of the room. Now I want to find out the size of the corbels in that cornice or…