[CR]Help BSA and British people what do those letters stamped on mean?

(Example: Framebuilding:Tubing)

From: <Wornoutguy@aol.com>
Date: Sat, 17 Jul 2004 18:01:06 EDT
To: classicrendezvous@bikelist.org
Subject: [CR]Help BSA and British people what do those letters stamped on mean?

I picked up an old track bike and am interesting in learning something about the componants. The headset is the integrated type BSA and has an A stamped on it. The BB is cottered BSA and has a B stamped on it. The Crank is BSA and has E-5 stamped on it. What do these markings indicate? The pedals are track Faucheux Depose - any idea when these were used? The stem has JFW Hamerlink Titan stamped in it and it has no wedge? The seat clamp is the old brooks oval and logo in chrome. The saddle is the old logo brooks. Anyone want to help figure out what year this stuff would have been in use? Thanks Sam DiBartolomeo Riverside CA