Where can you get an owners manual for a 12 gauge Sears Model 20 shotgun number 583.2006 with a built in adjustable choke?

You can find an owner's manual for a Sears Model 20 shotgun (number 583.2006) by checking online resources such as gun forums, collector websites, or auction sites like eBay where manuals are often sold. Additionally, you can contact the manufacturer or a local gun shop for assistance. Some libraries or historical societies may also have archives of firearm manuals. Lastly, websites like GunBroker or specialized gun manual repositories may have downloadable PDFs.