------=_NextPart_000_0032_01C59FF3.30D8A1A0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable A lot depends on what profile and molding technique the bellfounder=20 used. I've seen bells with distinct inside and outside edges as=20 George indicates, but if it's an angular profile (German or=20 German/Hispanic) then the inner "edge" might be quite far from the=20 outer edge. On the other hand, some profiles have a continuous inner=20 curve such that there is no "inside edge" at all. [For the inner and outer edge measurements to be different, it requires the= bell to have a flat lip. This is rarely found in English bells, apart from= occasionally on thick trebles or twelves. Another problem which can arise is measuring the diameter of a bell which h= as been skirted to sharpen its note. It is quite difficult to decided exact= ly where to measure.] David ------=_NextPart_000_0032_01C59FF3.30D8A1A0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable