Rolling or pressing important signatures?

[steve-in-kville]

I was watching a documentary this past weekend and one of the scenes showed a president signing a bill into effect with a ball-point pen, and then used some manner of a rubber roller over the ink signature. What is the purpose of this and what is that tool called?

Tried googling but I'm not getting the right results. Thanks.

[Ken]

Signature blotter or ink blotter? https://www.galenleather.com/blogs/news/ink-blotting

They are from the days of fountain pens and slow-drying inks to blot up extra ink so it doesn't smear.

Kind of an anachronism today with ball point pens and synthetic fast-drying inks.

[steve-in-kville]

Signature blotter or ink blotter? https://www.galenleather.com/blogs/news/ink-blotting

They are from the days of fountain pens and slow-drying inks to blot up extra ink so it doesn't smear.

Kind of an anachronism today with ball point pens and synthetic fast-drying inks.

That would be it. Thanks.