Rocketman:

I pulled the gun back out and looked at the marks last night. The sleeving dates to 2000, based on the date stamp from the Birmingham proof house. The only other marks I cannot identify are the words "Patent Action" on the action flats and "WMS", "Patent No. 2762" and "8303" arranged in three lines inside a diamond shaped stamping also on the action flats.

The forend release is a Scott design, according to Vintage Guns by Dig Hadoke. I don't see that particular release on many guns, so I assumed that the gun was probably manufactured by Scott.

If you have any information on the meaning of the stampings or can suggest a way to research the patent, I'd be most grateful.

Rem