Help with barrel markings?

[Gerald Coffee]

I receintly purchased a Parker, 12 GA, SxS and I trying to gather all the information I can on the shotgun. I need a little help identifying the barrel markings. I have consulted numeriious sources, on-line and the book, Parker Gun Identification & Serialization. Unfortunitatley the factory book containing the information for my PARKER is missing. Hopefully some of you collectors may furnish this information.

This is what I have determined so far. Serial # 208240, Mfg. 1924, 12 Ga, #2 frame, PH (1) grade with ejectors (no E stamp), Parker Steel Barrels. 3 PATD dates, 1905-1910 Determined this from marks on water table. 30" barrels, plastic butt plate (dog in field), platic pistol grip cap (Parker Brothers), brass shield inletted into stock.

Here come the source of my questions. On the left barrel is stamped from muzzle to breach; [COLOR="Red"]JG inside an oval,(maybe UG) R K 3 (Remington Repair Code, Nov. 1941, Service Secection Receiced). Can anyone identify this mark?

The right barrel is stamped from muzzle to breach; P inside a circle (Parker Steel Brrels), HT over A, 44(barrel weight). Any help with HT over an A?

The lug is stamped from muzzle to breach, W, 12 (guage), 2 (frame size). What does the W represent?

There is a L stamped into the forearm lug, any ideas?

Also I understand these guns are chambered for 2.5" shells. A 2.75" shell, Fed. no. 7, target load, will chamber and eject and I have fired 2 of them through the gun, with no indication of any problems. Other than getting a chamber casting, is there anyother way to determine chamber size?

Thanks in advance for any information.