Right - looking for some help!

Does anyone recall going to a game (probably a friendly or a reserve match?) where we wore this shirt:





I already have the "proper" version of the shirt, which was worn against Cardiff (don't ask) in the FA Cup in the 2001/2 season:



The two shirts are the same size and construction and were never available as replicas.

The "what's this then?" shirt came via a Metalurg goalkeeper (we played them in the 2002/3 season).

My best guess is that it might be a training or sample shirt, but maybe you know otherwise....