Crescent was in business from 1892 to 1930. If it is a hammerless gun, it was not made before 1903. Value would be from $150-$250 and the Redhead recoil pad is an addon but it's not going to deduct anything from the value like it would on a high-end collectable.
It is possible, but, not practical
First you must remove the buttpad, or buttplate that you have on the stock. You will reveal the hole that the bolt goes into. You will need either a long screw driver or a extension attachment for a ratchet wrench in order to take the bolt out and the stock off.
The New England was a Sears trade name double barrel side by side hammer shotgun made by The Meriden Fire Arms Co., formerly A. Fryeberg, starting in 1905. The buttpad should have the Fryeberg eagle with no lettering in the scroll under the eagle. Everyone I've seen has had fluid steel barrels but I'm sure Damascus steel is also possible. None of these were nitro proofed so only black powder low velocity shells should be used if the gun is deemed shootable by a gunsmith.
First and foremost as with any weapon make sure 100% that is unloaded both chamber and magazine. -retract the slide/pump half way and unscrew the magazine tube cap and remove the barrel. -unscrew the buttpad from the stock and have an extended socket drive handy w/a 7/16th socket and remove the screw that hold the stock to the action. -punch out 2 drift pins for the trigger guard assembly and pull up on the trigger guard to remove from action. - remove the positive shell stop and the spring shell stops. these are recessed in to the receiver sides and are held in by the two drift pins. -then make sure the slide is locked in the forward position and look in the action from the under side and pinch the shell lifter ends inward with a flat head screw driver and make sure both are off from the holding post that are fixed into the receiver. -this will then allow you to remove the entire bolt assembly and shell lifter by pulling it forward and the slide action will come off the magazine tube. These are the firearm specific ways from dissassembling the Marlin model 120 pump action further parts brake down follow all other similar shotgun makes/models.
I don't have one in front of me, but if it's like other Model 94s you should be able to just grip the forearm near it's muzzle end and pull it off. It's probably held on by a spring like other 94s.