Ok Bigcypresshunter I understand or we both understand a few things about this object and it seems that your set like I'am on certain things about this piece . And I love to hear everyone's guesses . Where I think you and I will totally agree on is that it's old and made of Iron with grooves and a tapered whole , but that is the only thing we see the same.In my past I learned things that I base my opinions on with this object .I think your opinion on it not being machined in some way a wrong opinion and seeing that I've made gears for a major machine manufacture . I know and even made gears shaped like this for vehicle differentials or rear ends , have you looked at those gears? The ones that drive the gear in the pumpkin are tapered , kind of like this one . But seeing that you don't know the total history of this object how can you be so certain it wasn't machined or forged in some way ? If forged they used a die to hammer the steel through into shape and not even look like it was forged but like it was machined. I know this cause my late father was a Hammerman for just over 30 years and made gears for tanks and many other large equipment .What I see is a taper gear that either was stripped and discarded . That's why the ridges are rounded off . And it also suffers from many years of oxidation from rust and that's another reason for that rounding . Many primitive gears do not look like modern gears . And in the case of my suggestion that it might be a bore reamer for a smaller artillery canon was based on some of the primitive tools that were made for Gunsmiths . None of that equipment even resembles modern day reamers ... look at the primitive drills used to make a rifle bore back in the Flintlock days and maybe then you'll see that I based all of my identification on things I've seen used in the past, in fact it looks like a large bit used to deburr a larger hole that rotated on a shaft or maybe even by hand . And a hole doesn't have to be threaded to hold a axle or a pole to rotate on . Depending on the tapered side or where it was required to stay put a tapered hole has be used for that purpose for many years . Without seeing the original complete assembly you and I don't know how it would have been held in place . Maybe the axle pushed through the hole and was held in place with another sort of fastener . So please try to look at it when it was new , that's the way I would look at it and how I tried to ID it . If those rounded edges where clean and square on the ends it would more resemble a gear. Only then can you open your mind to accepting what the purpose of a tapered hole or how it could be held in place by one then maybe you can see how I base my conclusions .After all , the only thing that I question about your ID is the design was just for decoration . I see as part of a larger piece or a tapered gear that drove another (maybe stagecoach steering or large wagon) or some sort of a bore cleaner for a small cannon . I respect your ID but still feel your off base and need to take a look at the objects I base mine on rather than assuming that it's not machined or forged in some way for another perpose other than a pretty piece ... no disrespect met here ... just a clash of idea's . And if you can let me know why in your opinion (after reading this response) other than TreasureNet seniority you find it only for looks/decoration and not for a purpose ? Best Regards and Happy Trails , Woodstock