The Pamphlet Collection of Sir Robert Stout: Volume 54
2185 ÷ 28 × π X7 ÷ 100 ... ... ... ... ... ... ... ... = 17.1612 and the grooves of the granite leaf is ... ... ... ... = 17.l6in. and 12913.26 ÷ 237000 × π =17.153 ... ... ... ... = 17.16in. ± and the diagonal of the Base is ... ... ... =12913.26in