Machine Doubling?

Murphy

This is from the reverse of a 1964 Proof JFK Half:

DUIGUY

Thanks for the pic. I`m a rookie learning. Would say yes, MD.
After looking at coppercoin doubled die, it is hard to say without more pics.
Looks like i was wrong, learn something everyday here!

Conder101

The letters look like machine doubling, but the stars look like they may show some hub doubling. It looks like the points are split but the pictures aren't clear enough and the image is a little overexposed in that area.

clackamas

YES MD, IMO

BigGreek

The right serif on the U looks like hub doubling but its hard to tell.
The stars look like hub doubing as well.

coppercoins

Unequivically NOT machine doubling. That is a doubled die. I don't know anything about the different listed dies for 1964 half dollars, but I can tell you with 100% certainty that your coin IS a doubled die.

Nice pics...

Edited to add : it's a class 2, distorted hub doubled die. This is characterized by the fact that all of the doubling shows toward the center of the design - it's not rotated or offset.

Murphy

Hehe, thank you Chuck.

RVDavis

Hub doubling in my opinion

pharmer

Bought some 1964 proof sets last couple months trying to find my own AH Kennedy raw, and was surprised at how many doubled die Kennedys there were, both ddo and ddr. Turns out CONECA lists 35 ddo's and 17 ddr's currently. Actually went so far as to make a positive ID of ddo-033/ddr-017. Sort of loses its flair when you can't find one without doubling.

coppercoins

Maybe loses its flair for some, but try finding all 52 different dies. That's the challenge.

Murphy

Haha, that's why you da man Chuck.

Murphy

On the advice of Coppercoins, I sent a photo and email to James Wiles who does 20th Century attributions for Coneca and he agrees that this is hub-doubled. So, I sent it in to him for attribution today.
More info about this coin, it is a 1964 Proof JFK Half with a normal obverse, accented hair reverse and hub-doubling completely around the coin from the area of the stars outward and all of the lettering is doubled. At first I didn't notice that all the letters were doubled and that the doubling eminated outwards, like from the center of the coin. I learned that's how ya tell this kinda hub doubling from machine doubling.

I would kinda like to know how this is able to happen.

coppercoins

Think of pressing a design into something using first a normal design, then stretch that design out of proportion and press it again. The details, especially those away from the center of the design, will be doubled outward. That's how it happens.

As for telling the difference between this and machine doubling - you could show me a well lit clear photo of one single doubled device and I could tell you whether you had machine or hub doubling. It's the characteristics of the doubling itself that are completely different between the two - makes no difference which devices are doubled and what direction.