What are the actual opening sizes for copal shutters 0 and 1

Hi, I am in the market for a couple of lens boards for Zone VI
and Wisner camera's...

First question, do these cameras take the same board?

Second question, I've noticed that some stores on-line are
selling boards for these cameras, and they aren't listing
the openings by saying "copal 0" or "copal 1"... they are
just listing a number like 34 or 42. I'm assuming that
these numbers are the measured opening in the board in
milimeters. My question is, does anyone know what a
copal 0 and a copal 1 opening is in these terms..

Thanks for any help

Mark
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p

"Mark Baylin" <bp171.RemoveThis@FreeNet.Carleton.CA> wrote in message
news:cf2hl6$c8e$1@freenet9.carleton.ca...
 >
 > Second question, I've noticed that some stores on-line are
 > selling boards for these cameras, and they aren't listing
 > the openings by saying "copal 0" or "copal 1"... they are
 > just listing a number like 34 or 42. I'm assuming that
 > these numbers are the measured opening in the board in
 > milimeters. My question is, does anyone know what a
 > copal 0 and a copal 1 opening is in these terms..

34.6mm and 41.6mm respectively.
more on those shutters here: <a style='text-decoration: underline;' href="http://www.skgrimes.com/press/index.htm" target="_blank">http://www.skgrimes.com/press/index.htm</a><!-- ~MESSAGE_AFTER~ -->