Terminoligy Question

[Digenes]

Looking at the Copper Coins site, I will see on some discriptions of where the doubling is as K3 or K4 or some other K#. Not to sound stupid or anything, but world really like to know what is ment by the K#.

Thank you all very much in advance
Dave

[coop]

Those are reference to clock position on looking at a coin with the 12:00 at the top of the coin. Why K? I don't know?

[Digenes]

Thanks for the respons Coop.
Now just to make sure I understand. K3 would mean at the 3 O'clock postion on the coin.

Dave

[coop]

You got it!

[coppercoins]

Well, not exactly.

K3 would mean FROM the 3 o'clock position. It's used in doubled dies primarily to describe a pivot point on pivoted hub (class 5) doubled dies.

In effect, the K position of doubling on pivoted hub doubled dies is the point with the least amount of doubling because that's the center of the pivot. The point OPPOSITE the pivot is where the most doubling would be.

So, a pivoted hub doubled die from K3 would have the most doubling at K9.

The big 1995 doubled die is pivoted from K4. The least doubling is in the date (at K4-K5) and the most doubling is in LIBERTY and the first half of IN GOD WE TRUST.

To illustrate this imagine a clock face, then set another clock face directly on top of it to simulate multiple hubbing. Attach the two clock faces near the edge at 4 o'clock (K4) with a brad, then move the top clock face using the brad as the 'center' of the movement. You'll notice that the position that travels the most is K10.