| Author |
 Replies: 15 / Views: 2,911 |
|
|
Valued Member
United States
170 Posts |
Is there any easy way to differentiate between a 'flat' and 'concave' example of this year. Other then holding one of each and comparing?  Here's mine;  Thanks, Glen |
|
|
|
Pillar of the Community
Canada
1082 Posts |
Only way I've found is to look with a loupe so see if the field of the coin "rolls up" to the rim.
|
|
Pillar of the Community
Canada
636 Posts |
Yepper...Wpg is right...its a bugger trying to determine them by the naked eye, and Charltons decriptions don't really assist either.
|
|
Pillar of the Community
Canada
1082 Posts |
And on top of that, that's not the only year this occurred -- happened in 1936, too.
Strange that it happened in the first year and the last year of this series.
|
|
Valued Member
Canada
480 Posts |
It has happened in quite a few years- a chap on ebay from back in the maritimes has listed many more over the time I have looked at his listings. |
|
Valued Member
Canada
304 Posts |
My Charlton 2009 edition is very helpful on this point. On page 64 there are images of each type of coin edge, which are no use at all, and two small cross-section diagrams labelled "Concave" and "Flat", which illustrates the difference perfectly. I dont have a flat bed scanner but if anyone is interested, I'll post a digi photo.
|
|
Bedrock of the Community
United States
10284 Posts |
Quote:
akglen
Here's mine Wow that is a beautiful Canadian Nickel. I'll have to consider crossing the border into collecting those. I am a US collector but yours really jumped out at me.  |
|
Bedrock of the Community
Canada
10743 Posts |
Your always welcome to cross the border wheezydog.  But, make sure you have your passport by June. |
|
Valued Member
 United States
170 Posts |
malibu; I would appreciate seeing the pictures in your catalog, mine is a year older(2008) and I would like to see if they are any better.
|
|
Valued Member
Canada
304 Posts |
|
|
Valued Member
United States
170 Posts |
Thanks for all comments and malibu, these pictures are a whole lot better, at least the parts showing the field to rim junction. I was going to say that mine was concave due to the way the luster moves on the coin but now believe it is flat because the field does not roll up to the rim. WpgLwr, I just didn't understand what you were trying to describe until I could see it in the picture. I don't dare and will not do it, but I really want to take a dental pick and run it around the rim to get a good feel for it!
|
|
Valued Member
Canada
480 Posts |
Check out ebay seller gobalish, especially item 120376639254, where he states that he has found both Flat and Concave rims on all dates between 1922 and 1936, except for the 25 and 26, which he has not examined enough. He also states that the rims can be different on either side of the coin, so you can have concave on one side, flat on the other side, or both concave, or both flat. He also states that the degree of concavity varies from almost none to very rounded. It sounds to me like it may be a weakness in the dies that comes with many strikings. Is that possible? Is the rim put on before the blank is struck? Would it be possible for there to be a size variation of the die striking face, and the curve is explained by metal flow? I am not really sure, but I begin to suspect that this is not a definate die variety, and only a die state variety. Anyone else with ideas? |
|
Valued Member
United States
170 Posts |
Great link! I never see enough of these coins to even have an educated opinion. But using the info you included above I would ask if it was a die state variety why wouldn't the same metal flow have occurred for the years of '25 and '26?
|
|
Valued Member
Canada
480 Posts |
He said that h hadn't seen enough of these coins to say.
|
|
New Member
United States
22 Posts |
Boy have I been confused. I thought it was the date that was flat or convext - not the rim. Thanks for correcting this long held mistake.
Olmanjon
|
|
Pillar of the Community
Canada
838 Posts |
I went out looking in a bin for a 1936 concave yesterday, and found one that cost me 25 cents. Now you're telling me I have to find one for every date?! Aaaahh - the curse of being a coin collector!
|
| |
Replies: 15 / Views: 2,911 |
|
Posted 03/23/2009 9:01 pm
