Antique Doorknob?

[kelpike]

I searched the internet but I could not find any info on this doorknob. This was found in the stream behind the Mt. Washington Omni Resort. I'm not positive that it came from the resort but I guess the building was constructed in the early 1900's. It is brass and the threaded hole is not the standard 3/8ths hole, it is about 5/8ths of an inch. I have dealt with many older buildings and I have never seen a handle with a hole this large.
http://i569.photobucket.com/albums/ss133/kelpike/ed1a4e60.jpg
http://i569.photobucket.com/albums/ss133/kelpike/8e2240c5.jpg

[del]

could be the top to an old brass bed post .

[Tony Two-Cent]

I'm certainly not an expert on doorknobs, but I've never seen any that are threaded like that. Don't door knobs always have a set screw in the side of them to keep them from turning?

I wonder if it's a knob off of an old hand tool like a drill or a planer? Just a thought.

[fyrffytr1]

I think Del hit the nail on the head. Bed post finial.