[gnarledmaw]

I know that this means exactly nothing but I don't think that's ancient at all. Im pretty sure Ive seen that before. I could be confused because for various reasons I have spent a lot of time searching for ancient weapons on line and have always made a point of going to as many museums as possible. The memory isn't clear but the drawer its in is labeled "19th century reproductions, clubs and secret societies, ritual".

It should be relatively cheap and easy to send it to a university to check the origin by profile of the metals composition. If they really suspect it of being authentic the tests would have been done already.

[SunkenCiv]

I don't think that's ancient at all.

I wholeheartedly agree. In a later episode the bros take a trip to the lab where it was examined, and it was found to be modern. I suspect it's something like that. Probably some wall decor, or Masonic crap.