[CR]Mercian serial #?

(Example: Bike Shops)

Date: Sat, 2 Oct 2004 10:41:00 -0700 (PDT)
From: Jerome & Elizabeth Moos <jerrymoos@sbcglobal.net>
To: cr list <classicrendezvous@bikelist.org>
In-Reply-To: <BD83A4F2.2CAE%bees.bfg@tin.it>
Subject: [CR]Mercian serial #?

Recently acquired a couple of Mercian frames, my first, and am try to date them. Does anyone know the Mercian serial number system? But first, where is the serial #? I can't seem to locate it in any of the usual places.

Regards,

Jerry Moos
Houston, TX