stamping

[fiddle-fart]

Is it possible that a die can move during the stamping process?

MIke

[eagames]

If a die moves when striking a coin you see die shift, if it bounces it makes MD.

Most of the time when people say "die shift" they realy see strike doubling or die wear and mis-use the term.

Stamping isn't a coin term at all, for coins it's striking/struck.

[Dick]

Mike, I'll,puill your leg a bit. Stamping is not a term used in coinage, as Ed said. Nor is it used in printing stamps, or currency. It is used in the crushing of rock, (ore) for the removal of metal(s) from the base, or bed rock. These are known as "Stamp mills" They were used over a 100 years ago in the mining industry.
Dick

[fiddle-fart]

that is why I like it here

there is a bunch of people that are smarter then me and have a plethora(I looked it up) of knowledge

Thanks
I learn something every time I'm on here

Mike

[Dick]

Hi mike, so do I, every now and then!
Dick

[nightshade]

in regard to a die shift can it for example only do so over say the IGWT on the obverse side of a quarter or would it be over the whole thing?
you know how when you were a kid you might have taken some pennies or change and stacked it so that it looked like the leaning tower of Pisa? what would cause that effect on a coin.
for example the letter is shifted to the right and on the left side you see an incline going toward the ridge of the letter and on the right side of the letter there is something like an indent which causes the surface of the coin and the letter's ridge to make a "v" on that side?

[eagames]

MD can show on everything or on only some areas.

Probably partly depending on the die, something like a mintmark might show MD because it was deeper in the die or the date and mintmark because of the angle of the die/coin when it happened.

I've seen it show on one or two letters but nothing else.


As far as leaning tower of Pisa, that can happen because the rims are uneven. If there was a minor bit of MAD, sometimes the rim is low on one side. Stack a few and they lean.

If you look at cents from mint sets they often have extra high rims.

[coop]

Sometimes one letter/several some on one side none on the other or vice versa. Both... It happens. Machine doubling can also happen on varieties also. I have a DDR that 1/2 is a doubled die (Right in this case) the other half (Left) machine doubled. Splits right in exact halves. It is a doubled die that has machine doubling on it.
Here is another example I found:

It's both. It's a machine doubled variety (RPM)

[nightshade]

ed i meant the letters in in god we trust look like the leaning tower of pisa not the coin the coin is flat but it looks like someone took the die and shifted it to the right while the die was being picked up. so where the letters should be is an incline followed by a steep drop from where they ended up

[CoinboyJay]

Guys,

Take a look at Coop's picture at the date. See how it looks like it"scooched" or was pushed across the field of the coin AND how close and flat the machine doubling is. The flatness and "scooch" marks are what finally helped me recognize machine doubling.
Now check out the pics I've posted and notice how the second image is "next to" the first and not below it close to the field. Hope this helps a bit.
JAY

P.S. The coin is my 1995d DDO-003

[nightshade]

so you are saying if it is a double die it will be equal parts moved to left or right yet if it is machine doubling it will look unproportional

what i am trying to say however is slightly different look at this rough ascii drawing

letter ridge
|
v
______
solid metal ---> / /
(no seperation) / /
/ /
coin base ----> -------------------
again no seperation lines

what would that be

[eagames]

If it's like Jays 1995-d then it's a doubled die.

If the edge is a ramp it's probably not a doubled die. I see that on reverse letters on zincolns. Not sure the causes but probably die wear or slipping or the normal design was somewhat like that in the mid 80s.

[nightshade]

hehe the edge is a solid ramp on one side yet the letters are shifted in the direction of the ramp

[eagames]

Try getting a pic if you can.

If the ramp extends far you might have a trail coin.

[nightshade]

if you look at the d in god you notice a shadow to the left of d the shadow is actually metal that connects with the shiny part of the d the top of the letter and that shadow are one continuous ramp