You will have to contact Rossi
You will have to contact Rossi or find one of their catalogs
Not here.
try gunbroker.com
serial# 3335539
Should be on the barrel near the receiver.
I cannot find any reference to marlin ever making a model 226.
Try e-gunparts.com
You will have to call Rossi with the serial number to find out.
We have 10-rd magazines for that model. sales@countrygunsmith.net
You will have to call Rossi to find out.
Call Rossi and ask for a manual
The Stevens 311 is a double barrel shotgun.