45
Assuming you mean the Stevens Model 238 bolt-action, I have magazines. sales@countrygunsmith.net
The 238 is similar to the 258. For parts, try gunpartscorp.com
A FEW parts are available from gunpartscorp website.
Your Stevens model 77C was made from 1955-1971.
Your stevens model 9478 was made by savage/stevens between the years 1978-1985.
The cost of a clip (magazine or shell holder) for a Stevens Model 238 20 gauge can vary based on availability and condition. Typically, prices range from $10 to $30, depending on whether it's new or used. It's advisable to check with local gun shops or online marketplaces for the most accurate pricing.
About 20 years old
Made from 1912-1945.
The stevens model 335 shotgun was made from 1926-1935,with a total production of 2,000 guns made.
Sorry, but you won't.
Your Stevens model 200 shotgun was produced around circa 1910.
My research indicates that the Savage/Stevens model 107 was made from 1912-1945,with a total production of 443,500 made.