In article , Vince Iorio says...

They are rubber rollers that are used in printing to spread ink on platens (I
think that is the word).

They are great, though you need to get a good/expensive one. The cheap ones
are not round (not a real issue) or straight (a problem).

Oooh. Another widget. What's a 'brayer?'

I believe it's a small rubber roller - Hobby Lobby sells them.

Ah. Thanks guys.

I've been just carefully spreading the bluing on the
surface plate with gloved hands.

Jim

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