This vintage example preprint is good to show the card, but other examples do a much better job looking truly handsigned - especially his formal CBS portrait. Looks just like fountain. Seems Jackie wasn't only one not answering his mail. Those vintage cards can be really tough to distinguish.
True, in his later life, he signed a lot TTM,as Trixie apparently still does. While it is sometime said "you'll never see a forged Carney", I have seen many (this is course is not one of them, and they aren't all obvious stamps with bubbles either).
