Ink-holder.
black ink
Unless a document specifes that you must sign it in black ink, it is generally acceptable to sign a document in blue ink. The reason many documents specify black ink is because it reproduces better when the document is copied.
Black ink
These sites might help you: www.drawrm.com , www.calligraphyemporium.com .
You sign it with a pen - and permanent ink.
charege head master use for green ink pen &sing
it is in this white poddle that has invisable ink sign on it and it is blue ink that you can put on someone shirt and then it disappears after a little while.
Yes, ink is a singular, common, concrete noun, a word for a thing. The word ink is also a verb (ink, inks, inking, inked), writing with ink or applying ink; used informally for to sign a contract.
To sign in blue ink typically implies that the signature is original and not a photocopy or digital reproduction. Blue ink is easier to distinguish from black ink, which is commonly used for copies, faxes, and printed documents. It can serve as a security measure to ensure the authenticity of the signature.
I believe an Iron based ink
Does_it_matter_what_color_ink_a_notary_uses_for_its_signature