Darren] Was it supposed to belong to a particular person? Not sure what this means. It does belong to a particular person - the form of the answer is {person's name}'s {object}.
Raak] Does it have a knob on the end? I refer the honourable gentleman to my last answer but one.

[Irouleguy] Re: the "particular person" question. That was what I meant.

Raak] Is it any sort of ship? No
Darren - Was the owner a real person? No
CdM - Is it too heavy for a single person to lift? Good question - yes
Inkspot - Is it something that is worn? No

Darren] Is it something large enough that a human could get inside? No
Raak] Is it a building? No

Inkspot] Is the object made from stone? No
Chalky] Is it connected with transport? No
CdM - Would it help me if I understood your reference to "Anchorage"? No.
Sorry - it was just a joke about being cold. It's the only song I know about Alaska.
CdM - Was Shakespeare the author of the fictional work in question? No

CdM] Could a human wrap his/her arms around it? Almost certainly not
CdM] When you said "Harry Potter's staff" was the "right line of thinking" did you mean something more than that it was of the form {person's name}'s {object}? No
CdM] Is it time for me to shut up and let someone else ask a question? Not at all - they're good questions and it's not that busy today
Raak] 19th century? Yes
Darren] Is the person's name more than one word? Yes

The person in the answer shares a name with the author of the fictional work.

Raak] Lady Windermere's Fan? No, but in several respects the closest approach yet.
Chalky] Is the fictional work - a film? Not originally, but it has been filmed.
Chalky] Is the fictional work - a play? No

buit it's not the title of a book.....*retracts already abstract answer*

CdM] Was the fictional work originally written in English? Yes
Inkspot] Was the film made before 1950? No, for all versions (see below)
Darren] Is there more than one filmed version (including cinematic and television versions, if applicable)? Yes, according to IMBd three (one cinematic, two television). Obligatory trivia - the actor playing the person in the answer in the first TV version was once in Blake's seven, and also has a connection to the colour clue.
Raak] Is it an item of furniture? Yes, though that's not its primary function
ZK] Is it anything to do with Oscar Wilde, or in fact Dorian Gray, and am I allowed to ask more than one question at a time? No, and no, and apparently yes
ZK] Tom Brown's Schooldays? I refer the honourable gentleman to his subsequent answer

(For example, do you think it would be an acceptable solution in a crossword?)