| Author |
 Replies: 13 / Views: 1,933 |
|
|
Pillar of the Community
Canada
1161 Posts |
When looking at a coin with a rotated die...do you calculate the degree of rotation in a single direction only? What I'm asking is if you start at 12 o'clock and calculate the degree of rotation going clockwise or do you calculate from 12 o'clock and determine the degree of rotation up to 180 for either clockwise or counter clockwise rotation.
Thank you for any info.
|
|
|
|
Moderator
 United States
23522 Posts |
It's most normally measured in total clockwise degrees from "normal", so numbers larger than 180 (medal orientation) are possible and I've seen them quoted so.
|
|
Pillar of the Community
3352 Posts |
I agree with SuperDave ... although most catalogues merely have a directional arrow showing the rotated die direction, if a numeric description is given it is usually the "azimuth" (measured from North, clockwise through 360 degrees) ...
NOTE: I have never seen the "bearing" given as a description of a coin's rotated dies (measured from North or South, towards East or West, never exceeding 90 degrees)
|
|
Bedrock of the Community
United States
20753 Posts |
To avoid my own confusion I normally say about 10 degrees left or right. By that I mean if the reverse is tilted to the left or to the right so then it makes no difference as to clockwise, counterclockwise, North, South, etc. It's simple to the left or right.
I've noticed when discussing a rotated reverse to almost anyone, left or right is the simplist.
And if completely turned I just say Upside down.
Edited by just carl
10/25/2011 10:27 am
|
|
Pillar of the Community
 Canada
1161 Posts |
The reason I'm looking for clarification is from what I have been reading...value is relative to the degree of rotation. If rotation is measured from a clockwise direction...a 10 degree clockwise rotation would be considered within tolerance but a coin that is rotated 10 degrees to the counter clockwise...if you measure rotation from a clockwise perspective...would actually be 350 degree clockwise rotation? Have I confused anyone yet? Excuse me while I raise my hand. LOL! I'm just trying to get it straight in my head.
|
|
Pillar of the Community
United States
1256 Posts |
I would call the 350 degrees still in tolerance. It's only 10 degrees from normal.
|
|
Pillar of the Community
United States
4132 Posts |
I've always seen it specified as X degrees clockwise or counterclockwise, so the rotation is always 180 degrees or less. This would be about 150 degrees clockwise, rather than 210 counterclockwise.  |
|
Pillar of the Community
Canada
1161 Posts |
I have always thought that the degree of rotation was either clockwise or counter clockwise to a max degree of 180. I had read a few posts somewhere that a coin was 350 degree clockwise rotated. That is what sparked my curiosity and prompted me to make this post. I figured that if the degree of rotation was calculated clockwise only that the coins that I have seen with what I would call a minimal counter clockwise rotation (5 - 15 degrees) could of been worth more then I thought before I released them back in to the wild. Personally...I have yet to find a coin with more then a 15 degree rotation either clockwise or counter clockwise but I'm always on the lookout. I just wanted to verify that my understanding of how a rotated die was calculated.
Edited by cladhunter13
10/25/2011 3:40 pm
|
|
Bedrock of the Community
United States
20753 Posts |
At almost any coin show I've ever been to and coin stores too, hardly anyone even mentions a rotated reverse on a coin. Possibly unless excessively rotated, they are just ignored price wise. As an example of how little they are paid attention to if you have a famous Red Book simply turn to pages 404 to 407 that covers error coins. Rotated reverse are not even mentioned. In some types of coins they are so common it is expected such as with many Mercury dimes. One rather interesting thing I've found is when attempting to bargain with a dealer if a coin has a rotated reverse, I bring that up as a way to lower the price. Many dealers will lower a price on a coin due to a rotated reverse. |
|
Bedrock of the Community
United States
17884 Posts |
Over the years I have seen them described both ways. Personally I prefer the CW, CCW 0-180 convention. I think the 0-360 convention comes from the fact that there is no way to know which die rotated or in which direction. So CW was chosen as a standard and then you only have to worry about magnitude.
|
|
Pillar of the Community
3352 Posts |
Ummm? ... well, in my early days I was a surveyor, so it is a no-brainer to me that measuring from North through 0-360 explains everything (why complicate it?)
|
|
Pillar of the Community
Canada
1161 Posts |
I thought that coins with a 90 degree rotation or more could have a premium value to them. I'm not trying to complicate things...at least I do not think I am. LOL! I did a web search for rotated dies and checked various reference pages that came up. It seems that opinions vary for them as well with some stating the 180 CW or CCW rotation and others stating a 360 rotation. Ahh well...no matter I guess. To each his/her own. :)
|
|
Pillar of the Community
3352 Posts |
I've kinda changed my mind (ummm, maybe booze induced?) => Azimuth-Schmazimuth => I don't bother with the "almost-rans", I only consider rotation flaws that are 90 degrees off, or better! (sideways, or up-side-down) ... otherwise, wah!
... sadly, now that I read my post, I'm sure that the rotation-gurus will find flaws in my statement ( darn that booze!)
Edited by stevex6
10/26/2011 10:13 pm
|
|
Bedrock of the Community
United States
20753 Posts |
Quote:
... sadly, now that I read my post, I'm sure that the rotation-gurus will find flaws in my statement ( darn that booze!) Not likely. Ever wander to the left and click on Glossary? Note with coins the world is going to end up with an entire separate terminology system from the other languages on Earth. For rotated reverses it could well be North, South, Left, Right, Tilted, Degrees and on and on and on. And is it the Reverse, back, front, obverse, etc. that is tilted anyway? |
| |
Replies: 13 / Views: 1,933 |
|
Posted 10/25/2011 07:39 am
