You can find it stamped under the forarm on the under side of the barrel and on the forarm its self
Try your local gunsmith. The Riverside is a Stevens shotgun. If you can find out which model it is, you can probably find the wood at Numrich Gunparts
Numrich or one of the other online parts dealers should have one, but you will need the model number, or good photos of it, and the gauge.
Try Numrich arms @ www.e-gunparts.com
Riverside Arms is a brand name used by the J Stevens Arms Co. on many good quality shotguns. The value depends on model, gauge, and condition. There is little collector interest in single barrel shotguns. Information about J Stevens Arms apply to Riverside Arms Co.
Riverside Arms Chicopee Falls Massus. (569HF
The riverside double barreled shotgun only came in two models, the 215 (exposed hammers) and 315 (internal hammers). From what I have heard, the 215 should take parts for Stevens or Savage model 215s. However, you can find Riverside parts at http://www.e-gunparts.com/products.asp?chrMasterModel=2680zDOUBLE%20BARREL&MC= A serial number not preceded by a letter indicated the weapon was manufactured prior to 1949. I'd bet (but only a small amount) there is a 3 or 4 digit number on the right side of the receiver which will be the Stevens model number.
Riverside was manufactured by Stevens, so if you can identify the equivalent Stevens model, you should be able to find hammers at http://www.e-gunparts.com/ Or if you still have one hammer (or a broken one) you can take it to a local gunshow and dig through bins of miscellaneous parts looking for a match.
Riverside was manufactured by Stevens, so if you can identify the equivalent Stevens model, you should be able to find parts. Check with a local gunsmith.
Riverside Arms was a name used by J, Stevens Arms and Tool Co (which became part of Savage Firearms) between 1915 and 1940. There are no public records for dates of manufacture.
have you found the number
If you have the model number, quite a few firearm fora have collectors and fans with information. They're generally not worth more than $200 or so. In good shape, they can be very reliable shooters, and lots of spare parts exist.
The model number should be on the right side.