I've seen lots of cases where people mistake machine doubling for doubled-die coins. And I'm wondering now if I have an example of this. I just got a 1963 proof Roosevelt dime where a previous owner marked the flip as FS-803. But after looking at the coin with a macro lens and using the "Wexler's Coins and Die Variety" website as a reference, I'm pretty sure it ISN'T a FS-803. But it doesn't match anything else in the Wexler site either, as far as I can tell. But it has this interesting doubling on the "ONE" in "One Dime", and if you zoom in, it sure looks like tripling on the left side of the "P" in "Pluribus". Is "mechanical tripling" a thing?
Please take notice from the pic above that the doubling adds to the size of the devices. This is a immediate Pick up for a Doubled Die. Yes tripling can happen but it also happens to DDO's, There are at least three different quadruple die obverses.
I'm having a hard time with it . Maybe side by side comparison better , for me anyways but who am I . lol
By the way I just looked Check your coin against one of these it doesn't look like an FS 803 to me. http://varietyvista.com/07 Roosevelt Dimes/DDRs 1963.htm
Right, I don't think so either. But it does have some other "Doubling" that is probably worthless doubling - and I wanted confirmation as I'm new at this. I'm about to post other pics.
Here's other pics. The whole coins are just with an iPhone - the macro lens is a 25x and cannot get the whole coin in focus. Sorry! But the closeups are with the macro lens. You can see 'doubling' , but it doesn't look like the examples I've seen of true doubling. I welcome people's opinions.
Added size of devices: Do you mean the E and the P in E Pluribus Unum? They seemed a little large to me. Or were you looking at something else?