Help 1971-D Kennedy DDR

[mikeu72-migration]

Can anyone tell me if this is a double die or is it mechanical doubling

Personally I do not think it is mechanical because the the letters are shifted clockwise on "half dollar" and counter clockwise on "america".

Any idea of value???

[mikeu72-migration]

and the same coin

[mikeu72-migration]

and 1 more

[rbrown4]

There are others on here with much more experience with Doubling than I but by what I can see it appears to be mechanical or strike doubling. The doubling appears to be rather flat and "shelf-like" as opposed to a more rounded secondary image which is typical of true die doubling. There are two true Double Die Obverse's that can be found in mint sets with either strong doubling on Liberty, In God We Trust and the 71 of the date or In God We Trust, Liberty with the In showing a tripled die.

 

Rey

[DonHeath]

Mechanical. Sorry. The coin below is a DDO, and you can see the split serifs, not a flat shelf-like area of impact on existing devices.

 

[physics-fan3.14]

As others have said, this is the worthless MDD, mechanical doubling.

[ibyandsellsmith]

Worthless to some, Mechanical or not very cool.

[WoodenJefferson]

There are others on here with much more experience with Doubling than I but by what I can see it appears to be mechanical or strike doubling. The doubling appears to be rather flat and "shelf-like" as opposed to a more rounded secondary image which is typical of true die doubling. There are two true Double Die Obverse's that can be found in mint sets with either strong doubling on Liberty, In God We Trust and the 71 of the date or In God We Trust, Liberty with the In showing a tripled die.

 

Rey

 

Dead on Rey, Good call.

 

Yes mechanical/machine doubling is fun to have...different, unique. Especially on the larger coins where little or no magnification is needed to see the slippage.

[bsshog40]

I agree. Not quite as extravagant as DD but nice noticable mechanical doubling is pretty cool too!

[mikeu72-migration]

Thanks guys can Anyone tell me how it will "slide 2 different directions as part of the coin is pushed clockwise while other letters are counter clockwise??

[cpm9ball]

Back and forth chatter of the die. I've got a few of the early 70's Kennedy's with mechanical doubling like yours.

 

Chris

[richbeat]

Mechanical doubling has different names: machine doubling, strike doubling, ejection doubling, and also die chatter which is what cpm9ball is referring to.

[dooly]

DiTO

 

i have cracked a few 1971 sets out and i still enjoy finding these (thumbs u