[CR]Date of English Witcomb?

Example: Events
Date: Sun, 19 Oct 2003 19:41:58 -0700 (PDT)
From: "r cielec" <teaat4p@yahoo.com>
To: Classic Rendezvous <classicrendezvous@bikelist.org>
Subject: [CR]Date of English Witcomb?

Can anyone suggest possible date of an English made Witcomb? Underside of BB stamped 2040 578


Richard Cielec Chicago, Illinois

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