Nice to meet someone so familiar with the Canonical Units system, and yet another interesting proposal for this old pile of rubble now. Just a tad in excess of the stated dimensions in the Wiki article, as Jim's is a tad under, with mine falling in the middle value range. But that is ever how it goes with these type of investigations,based on what little information we have to work with concerning these old monuments. John Michell would have reveled at the value 1036.8 Ft. perimeter value, x 24 = 24,883.2 as his Canonical Earth Circ. model dimensions in Mile units. His model is also the underpinning foundation for my grain/weight units system of measurements, based on a cubic Ft. of Water weighing 62.208 Av/Lbs. or 1728 cu/ins. x 252 gr/wt.per cu/in. Thanks for showing this insight also.