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
Try Numrich Arms (www.e-gunparts.com). Look for parts for a Stevens 311 shotgun. They should be the same.
Where can you find parts for your Charles daily shotgun
What you have is a model 215 Riverside Double Barreled shotgun. There are only two models, the other one (315) has internal hammers. I recently obtained a model 215 and needed a new barell. I found a site that lists Riverside parts, but cannot vouch for them as I have not ordered yet. However, this is the only place I've found; It's Numrich Gun Parts Corporation. The link below will take you to the parts list for the Riverside double barreled shotgun. http://www.e-gunparts.com/products.asp?chrMasterModel=2680zDOUBLE%20BARREL&MC=
Riverside Arms Chicopee Falls Massus. (569HF
try looking at savage or Stevens shotgun diagrams. I found a firing pin for a 16 gauge riverside it was an old model 94 Stevens part
Modle 101 1380 410 shotgun
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.
I have a 1913 model 16 ga riverside arms shotgun . all it says , is the date made and company so on mine there is no ga. indication .
Numrich Gun Parts Corporation have most, if not all of the parts for an Excel shotgun. They are located in West Hurley, NY.
it is a Stevens, parts are interchangeable...
www.e-gunparts.com They have all the parts you need
riverside arms co. split single shot gun
Basically a Stevens "store-brand" shotgun from the 1920's. email@example.com
Stevens/Savage used the Riverside name from about 1920 to 1945.
You can find parts for many westernfield shotguns at Numrich gun parts. WWW.e-gunparts.com
Have you tried e-gunparts.com?
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.
Can't give you an exact date, but Stevens used the Riverside name from about 1920-1945 according to my notes.