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 Replies: 40 / Views: 8,617 |
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Pillar of the Community
United States
1571 Posts |
Dollar, you beat me to it, but I was going to say if Brett can't tell you, John can. That is right down his alley. although I collect the small cents, I hadn't given any thought to the edge of the coin to see if it has gone thru the "upsety mill", like the US coins do. Thea is one of the things that help in the stacking of US coins. most likely, the same applies to the Canadian coinage, as well The other thought, along that line, is the different sized denticles, or beads, as the case may be, doesn't look like, (to me), to be a stable base. IMHO. In the case of the denticles, I use them for locating the diagnostic, to determine the variety. You will notice, too, that in this particular method, that there is two points, which are exactly opposite, so that if one is not clear enough to tell for sure, check the opposite. ie, last "a" in gratia points to thr denticle. If in doubt, check the other "A". it will be between. The same ,ethod applies for the "DEI, where the "I" may be flared, or not, and the diagnostic, will point it out. Hope thas helps. Dick Edited by livingdinasaur
05/11/2010 3:57 pm
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Pillar of the Community
 Canada
636 Posts |
Indeed Dino, denticles do help determine varities as well..forgot that point.
And lets not forget about the large beads/small beads varieties. You can be sure those coins wont stack well if you mixing both of them within the same stack/
Edited by Dollar1948
05/11/2010 5:35 pm
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Pillar of the Community
Canada
650 Posts |
hey I this is good I never new , I thought they were cosmetic.
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Pillar of the Community
Canada
636 Posts |
Well, I got an offical response back from the RCM pertining to why we have these denticles....as per below. May 14, 2010 Dear "Mr Dollar1948", I acknowledge your email of May 9, 2010 inquiring about the denticles and beading often seen on Canadian coins. The purpose of having a bead or denticle design on a coin, token or medal is actually to discourage the counterfeiting of coins. Poorly struck coins have beads that run together - that are indistinct from one another. Well-struck coins will display each individual bead or denticle. Thank you for your interest in the Royal Canadian Mint. Sincerely, Mariella Montreuil Communications Representative |
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Pillar of the Community
United States
1571 Posts |
Well we have an "official reason for the denticles. I never had any problem with stacking coins. I have three alternatives:  Let them fall  , 'stack" them in square tubes  [, (so they don't roll off the table, or ust round tubes, and build a fence around the table    Dick. |
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Pillar of the Community
United States
1523 Posts |
Hardy har har.He's talking Canadian. I beleive that the reason for Yank coinage having denticles is so that the coins can't be shaved.The faking is a good reason but fake coinage can have dentacles.Antway, he was refering to the dots around the rim.
Edited by Halfwitty
05/15/2010 4:44 pm
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Pillar of the Community
Canada
650 Posts |
The reading on the edge is to stop shaving.
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Valued Member
423 Posts |
Charlton guide states they are "...used to prevent the punch from spreading during repeated die sinking." (p.410)
Funny to see all the different answers from the "experts".
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Pillar of the Community
Canada
1733 Posts |
Here's the thing, most of these devices are put in place for one reason when they start and later on someone realizes they actually may have other advantages. So microwaves were initially being researched as a form of communication and then someone realized "hey I can excite the water molecules in food and cook it". So all the answers are correct to some degree, but I'm willing to bet the first guy who put the first denticles on a coin didn't leave a written FAQ behind.  |
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Valued Member
423 Posts |
lol... everyone agrees what they ARE. What they are FOR seems to change over time, probably in ways the original designer never thought of or maybe the designer did know all the uses and denticles are a brilliant idea that goes mostly unnoticed today.
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Pillar of the Community
United States
1523 Posts |
I stick with the shaving thingy.
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Pillar of the Community
Canada
636 Posts |
Sorry folks, I guess most of you are sick of this thread, but I need to add an update. For those of you who are Royal Canadian Numismatic Members, please have a look within this Junes CN Journal you should have recently received on pages 273 and 274, 'Anatomy of a Coin'. Well, they are advising that the purpose of beading is as such.... "Beading actually has a technical purpose, in that it helps avoid flow lines which result from the flow of the metal during striking" This contradicts other offical statement, including the one I received right from the RCM. Edited by Dollar1948
06/03/2010 2:21 pm
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Valued Member
423 Posts |
Dollar1948: You should write an article. Collect up the references, get some pictures of shaved coins etc. Sure it could be published in a magazine.
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Pillar of the Community
Canada
636 Posts |
Its amazing the contradiction in info I'm getting depending on what source.
I just look at my entire Canadian collection, and the coins dating back since 1858 has got them.
You'd think because someone has to engrave those things on the die, plaster cast, (what ever) since those days and because they are so intricate, that the genuine purpose must be well known.
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Pillar of the Community
Canada
636 Posts |
hate to re-hash this thread..but for those who subscribe to The Canadian Coin News, the most recent edition I received a few days ago, (sorry dont know the dates as its in the other room and I'm lying down on the sofa with a lap top on my chest)Brett published my question and his snswer specific to this issue.
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Posted 05/11/2010 5:32 pm
