Is this live ink?

[rmarks]

I have a friend that wrote to Johnny Keane in 1964 in care of the Cardinals. He sent him a 1963 Topps card to sign. He is thinking it could be a stamp. I asked for close ups to see if there is overlap and pressure points. I am not an expert, so I thought I could learn from the experts on this board. I have attached three photos of the signature from tight to wide. Please let me know

1. Is this live ink?
2. If live ink, is the signature authentic?

Many thanks in advance.Screenshot_20220801-135400_Messages.jpg
Screenshot_20220801-135400_Messages.jpg

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[drcy]

It appears to be handwritten and not a stamp

[rmarks]

Thanks for your help. Anybody have an opinion regarding authenticity of the autograph?

Thanks again.

[BillyCoxDodgers3B]

Stampola

[WhatsNext]

looks like a stamp to me

[rmarks]

Thanks for your comments. For those who believe it is a stamp, please give me the clues so I can learn from this exercise.

Thanks again.

[tha-rock]

Robert...

The 1963 and 1964 Topps Johnny Keane are both rubber stamp signatures. 100%

[rmarks]

Thanks, Lamar. The 1963 was the one I was considering, but the guy who owns it and I suspected it migh tbe stamped. Any tips that made the assessment so definitive are appreciated.

Thanks again to all those who commented.

[BillyCoxDodgers3B]

Well, I posted an exact copy of the same stamp on a different card...

[rmarks]

Thanks for pointing that out. That is irrefutable evidence for sure. Thanks again.

I was hoping someone could point out evidence in the close ups so I could become more educated In case i need to assess without having another stamped autograph to compare agsinst.

[scmavl]

Look at the uniformity of the pen strokes. A live auto will have slight irregularities, even with a non-fountain pen. A stamp will often be the same width and pressure all around.

[rmarks]

Thank you, Jarrod. That helps.