Mouthpiece Work / Guto's Tip Gage
FROM: mojomouthpiecework (Keith Bradbury)
SUBJECT: Guto's Tip Gage
From a SOTW post:

http://photos.groups.yahoo.com/group/mouthpiecework/vwp?.dir=/Gauging&
.dnm=Guto%27s+Gage+from+SOTW.gif&.src=gr