That's really some outstanding wood. What grade is it ? The one I just bought has nice wood but not near as nice as yours. I noticed a 4 stamped under the serial number - any idea what it stands for ? Nice gun. Mine was built in 1917. Anyone have a idea what recoil pad it would take and where to get one ?

Paul the 4 stands for the Grade which is an SC. The Hawkins pad was the the standard with options for any other pad. This is on page 168 of the Parker story

Thanks to an old post by Chuck I was able to correct the forend being loose. There was a large dab of silicon sealant at the front of the forend. Chuck mention in his post a common issue of people trying to correct a lose forend by using felt and other items.
When all that was needed was to tighten the screws. I found both forend screws almost two full turns backed off. Removed the sealant and tighten screws. Forend fits like a new gun.

Here are some pictures of the SBT that Brian reconverted to pull trigger for me. He also did some outstanding work on the wood. This is a late model gun with some pretty nice wood also. 241027

My 1917 SC came with a Silver pad. I suspect that 1917 is a bit early for a Hawkins pad. Tony sells Silver pads and repro Silver pads. I use the Griffin and Howe Silver repros, but they are apparently out of them.

Bill I did further research and You are correct. Hawkins pads were not patented until 1919.
https://patents.google.com/patent/US1325152