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 Replies: 18 / Views: 3,122 |
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Valued Member
United States
324 Posts |
While it is possible for dies to be used that still have lathe marks on them, the result looks different than this.
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Moderator
 Canada
10463 Posts |
Quote:
Oh, maybe I should post it on the bay as a "One of a Kind"? I really hope you were joking... it is sad to see novice error collectors spend their money on fabricated "errors"... I once had to tell a young collector that his error collection was worthless - he had purchased a bunch of garage job PMD coins on ebay... unknowingly... I took pity on the lad and gave him a nice mint state off-centre 1-cent. "Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert OppenheimerContent of this post is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. See: http://creativecommons.org/licenses...0/deed.en_USMy eBay store
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Valued Member
United States
453 Posts |
Maybe someone used it as a spacer on some sort of bearing in a machine or something?
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Valued Member
Canada
329 Posts |
looks like maybe used in this kind of setup, where, a hole drilled in the end was not wanted. not sure however why the cutting tool looked like it was indexed on the cent rather that the piece.( lightly touched to the face you want to set the machine at zero to base all your other measurements on). http://www.americanmachinetools.com.../Fig7-47.gif |
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Pillar of the Community
New Zealand
1679 Posts |
I hope you don"t mind 47P7 What causes this ? as I have similar on this coin ---like tree rings not gouged in.  cheers Don Cheers Don
Vickies cents and GB Farthings nut.
"Old" is a figure of speech and nothing more
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Pillar of the Community
 Canada
1505 Posts |
SPPof course I was kidding... should be obvious.  Bought it for a dollar at our coin club auction. Why? Just because...  Ok now, I am still asking myself HOW someone made this? Just for interest and to know. it had to be attached to something and then turned. The 2 indentations alone would not hold it to a mechanical lathe or whatever IMO, to turn it and create these marks. There had to be some pressure to do this. AND if you closely look at it, it was done a long time ago. Maybe even at the mint "during liquid lunch hour". 
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Valued Member
United States
152 Posts |
Judging by the flattening on the reverse it may have been done with some kind of punch.
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Moderator
Canada
10463 Posts |
Those are lathe lines fourmack, I wrote an article in the CN Journal about lathe lines in Canadian coins. Are you a member of the RCNA? If so, you can access that article in the Dec 2013 issue. "Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert OppenheimerContent of this post is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. See: http://creativecommons.org/licenses...0/deed.en_USMy eBay store
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Pillar of the Community
New Zealand
1679 Posts |
Quote:Those are lathe lines fourmack, I wrote an article in the CN Journal about lathe lines in Canadian coins. Are you a member of the RCNA? If so, you can access that article in the Dec 2013 issue. Thanks and no cheers Don Cheers Don
Vickies cents and GB Farthings nut.
"Old" is a figure of speech and nothing more
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Pillar of the Community
Canada
1505 Posts |
Guys, something happened at Photo Bucket.
most, if not all my images are gone to Image haven....
if you like me to re load, please let me know here.
sorry.. ( Not a happy camper)
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Moderator
United States
16679 Posts |
If you move the images, they break.
swcoin.ecrater.com
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Pillar of the Community
Canada
1505 Posts |
did not move them. wanted to add some to a new file and suddenly zip zup zap criss cross and a sign popped up saying that I deleted these images.. which I did not. did not touch or play with the uploaded stuff. whole bunch is gone, NOT JUST T 1 FILE.....oh well, there are more important things in life than images... right? how about some nice California Merlot?   |
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Valued Member
Canada
329 Posts |
the picture I gave just gives you the idea. in this instance there could only be one half center (or point) on the end of the piece with a cent in between the two to keep from marking up the end of the piece you are cutting. the other end of the piece would be in the chuck turning it; or I suppose ,depending on how light a cut you are making, be in the setup illustrated. this is done on a long piece of rod because it tends to vibrate and not cut with a smooth finish. to set your machine at zero, you lightly touch the cutting tool to the end of the piece with the lathe running, then you pull the tool towards you, (there are your marks). in this instance they did that on the cent, possibly because the piece was a smaller diameter than the cent. the flattened parts on the other side are from the pressure to the half center.
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Forum Kid
Canada
1074 Posts |
Metal lathes in which I am familiar have a 3 jaw chuck, or a 4 jaw chuck for square stock.
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Valued Member
Canada
329 Posts |
yes, that is not where the cent would have been. if you look at the image I posted on pg 1, the live center could also be a 3 or 4 jaw chuck. the other end where it says half center; if you wanted to protect the "work" piece, you would sandwich a cent between the "work" and half center, without having drilled a center hole in the piece and having already made the finishing cut on the face.
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Replies: 18 / Views: 3,122 |
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Posted 01/23/2015 11:48 am
