Some Help With A Few Terms?

Thanks coop, that clears that up some. when it states light spreading would you still be to see the notching or just looking for speading of the lettering and how would you determine if this is due to doubling or normal die wear. I see alot of coins with widening in some of the lettering but I have been chalking it up to normal wear or just a different style used that year. Especially in the 82's.

Thanks again coop, your pics make things so clear.
I think I've learned more from them than any site I have been to.

Okay, I will try to clear things up a little here:

1. The term "spread" refers to the apparent offset between two or more hubbings on a die. It's the 'movement' of the devices. It can be described in a number of ways, but the important thing to remember is that the 'amount' of spread is basically telling you how strong the doubling is.

2. A 'notch' is the effect of overlapping two square corners, then shifting one of them a little so that there are two apparent corners where there should only be one. The void between the two apparent corners is called the 'notch' - many forms of hub doubling show this 'notch' whereas Machine Doubling will never show notching because of the nature of how it is formed.

3. 'CCW' is an abbreviation for 'counterclockwise' - additionally, 'CW' is an abbreviation for 'clockwise' - these are used to describe the direction of offset in a hubbing of a die that causes doubling. It's a mathod of helping to describe exactly what a collector should see on a given coin to ascertain that it was struck with a specific die - the process of 'attributing' the coin to a die.

4. Most often the doubling that does not show specific separation is class 6, distended hub doubling. This form of doubling happens for various reasons, but the effect is extra thick, often disproportionately stretched letters and numbers on the resulting coins. It is the only form of doubling that isn't REALLY doubled, so much as being able to 'see' both sets of letters and numbers.