Unknown Tool

[camzim]

I acquired three of these several years ago, they were in a box of engravers and chip carver I purchased at a sale. Any idea what it is or how it's used. Looks like it would fit the socket of an anvil. Size; 6" long 3/8" at the short end 1/2" shoulder and tapers to 1/8"  hardened and has a manufactures mark. Direct  Link to photo as I'm having trouble with the attachment option.
http://i1214.photobucket.com/albums/cc496/camzim/Public/unkown2.jpg

[Papaw]

Find the IMAGE tag and then click the img icon just above the text box- 

Then paste the img tag between the brackets.

[john k]

I think it could fit into the hardy hole of an anvil, but tin smiths and silver smiths worked off of a steel plate set into a work table.   These had several holes for tools they could change out.   I have never seen a square tool bar such as this.   Tapered, so it could be for shaping, or straightening, you got me scratching my head. 

[Branson]

The smallest hardy hole I've seen is 1/2 inch.  Such a long, slender business end I can't see as surviving even the blows of a silver smith.  It looks to me like  the 3/8 end is meant to fit into a handle of some sort. 

If the edges were sharp, I'd call it a reamer... But they aren't. 

Can you get a magnification of the maker's mark?

[wvtools]

Is the tip rounded or faceted?  It looks like a jeweler's broach to me, although I have not seen any that exact shape.  They were typically used in a jeweler's lathe to shape and enlargen holes.

[amertrac]

Thats a ring guage for people with square fingers....... iWOULD SAY SOME SORT OF A MANDREL FOR SIZEING HOLES IN SOFT METALS 

[oldtools]

Maybe jeweler's tool to form square settings for inlays.

[camzim]

I'd like to thank everyone for there help. Next thing I'll do is start searching appropriate catalogs. Unfortunately the makers mark is to small for a good photograph.

[wrenchguy]

is the square/rectangle end anvil friendly?

[camzim]

Best closeup of makers mark I could get.
The square end has a slightly taper of about ten thousands.

[rusty]

Something under an imperial crown....why am I thinking silversmith mark?