Here is a chart with U.S. Coin sizes to allow users to determine the sizes of knots without a set of calipers or to determine if the hole is large enough with clearance for the knot. http://www.usmint.gov/about_the_mint/?action=coin_specifications The diameter is what you are looking for in this chart. Enjoy!
For those in Europe ... http://europa.eu/legislation_summar...roducing_euro_practical_aspects/l25028_en.htm
You guys should check out English shoe makers, really nice tad better than AE like Crockett & jones. I do like AE and alden some of cordovan shells.
Great stuff! It also helps me get a real sense of the knot. Much more than a msmt. Thnx. Very helpful for me