Thanks again to Dr. Drew for posting the Photos of the Philip Webley 12b..I dont have the Gun"On Bench" at this present time. It is going to be a Very Interesting Project!.Salopian, I have my 1954 Rules of Proof open to page 26.Will 'Cheque'Internals with Copies of the London Proof 'Plugs'(Specs enclosed).Thats if theres any metal left in the Chamber-Walls!!!!I also have'On the Bench, P.Webley 12b Sr.No.7295 12b DB.NoN.Rebounding Locks,Has St James, London on Top Rib. Have shot many boxes of Black-Beauties with it over the years.On the Silver-Plated Trigger-Guard Bow, is engraved  "Oscar Pendleton" in Luverly script'. Any thoughts on who "OP" was?Gun aprox date 1870-1874? cc/dt 
The 1880 Census has several "Oscar Pendleton"s can you narrow down what part of the country the gun may have come from and I'll take a look and see if anything looks right. Would your gun have been very expensive when new? 
Four suspects,
1880 United States Federal Census 
Name: Oscar A. Pendleton 
Home in 1880: Wakefield, Middlesex, Massachusetts 
Age: 36 
Estimated Birth Year: abt 1844 
Birthplace: Maine 
Relation to Head of Household: Self (Head) 
Spouse's Name: Adella J. 
Father's birthplace: Maine 
Mother's birthplace: Maine 
Occupation: Watchman 
Marital Status: Married 
Race: White 
Gender: Male 
1880 United States Federal Census 
Name: Oscar Pendleton 
Home in 1880: Melrose, Middlesex, Massachusetts 
Age: 32 
Estimated Birth Year: abt 1848 
Birthplace: Massachusetts 
Relation to Head of Household: Son 
Father's Name: John 
Father's birthplace: Me. 
Mother's Name: Jane 
Mother's birthplace: Vt. 
Neighbors: View others on page  
Occupation: Ship Chandler 
Marital Status: Single 
Race: White 
Gender: Male 
1880 United States Federal Census 
Oscar F. Pendleton 
Home in 1880: Stonington, New London, Connecticut 
Age: 30 
Estimated Birth Year: abt 1850 
Birthplace: Connecticut 
Relation to Head of Household: Son 
Father's Name: Moses 
Father's birthplace: Connecticut 
Mother's Name: Francis E. 
Mother's birthplace: Connecticut 
Neighbors: View others on page  
Occupation: Grocer Clerk 
Marital Status: Single 
Race: White 
Gender: Male 
1880 United States Federal Census 
Name: Oscar Pendleton 
Home in 1880: Union, Hancock, Ohio 
Age: 21 
Estimated Birth Year: abt 1859 
Birthplace: Ohio 
Father's birthplace: Maine 
Mother's birthplace: Ohio 
Occupation: Fruit Agent 
Marital Status: Single 
Race: White 
Gender: Male