Which preposition to use with thumbnails

in Occurrences 2%

My breath came very fast, and I shook so that I had a difficulty to keep my thumbnail in the nick, yet hardly was it opened before exalted expectation gave place to deepest disappointment.

across Occurrences 1%

The idea the Germans betrayed at Brest, that things were going to be done in the Versailles fashion by great moustached heroes frowning and drawing lines with a large black soldierly thumbnail across maps, isold-fashioned.

against Occurrences 1%

She placed her thumbnail against the tip of her nose; spread her fingers; and made him a curtsy.

along Occurrences 1%

I run my thumbnail along the edges of it.

on Occurrences 1%

One of them chists got sprung, and I thought maybe I'd made a mistake when I put the light on it, but when I rubbed my thumbnail on it

Which preposition to use with  thumbnails