Judging Angles (5.13)
For buying purposes, many dealers rely on their judgment of determining proper specs with only a 10x loupe, cleaning cloth and a pair of tweezers. This takes a lot of experience and even then mistakes may occur. The following illustrations should be studied for the purpose of familiarizing yourself with side profiles of various crown angles. Judging angles and percentages is very challenging but with a lot of practice it can be accomplished with the assistance of the following methods:
