Here's what I've found: Flaydermans Guide 6Th Edition, page 619
Davenport Firearms Co. Providence,Rhode Island and Norwich , Connecticut. Cira 1880-1900. The founder, William H. Davenport, held a great many patents on breech-loading firearms. The company apparently devoted its energys almost exclusively to single barrel shotguns of very inexpensive grades, making them under both house and brand names.
Standard Catalog of Firearms 5th edition
page 238
Davenport Firearms Co. Norwich, Connecticut. Single barrel shotgun, A 10,12,16, or 20 gauge side hammer single barrel shotgun with 26" to 36" barrels nd extractors. Blued, case hardened with a walnut stock. Manufactured from aproximately 1880 to 1915.
I think the note about side hammer is a miss print and should have read single hammer. I hope this will help you.