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Only person authorized to sign using red ink is the Commanding Officer. review correspondence manual. I have seen CO's use blue ink. XO is usually green.
stamp is a must no restriction with color
It was Mauve ink, not purple, the colour was in fashion at the time, everyone had mauve.
Mangosteen ink is made from the deep purple pericarp of the fruit.
black ink
You can get the purple ink from Kilye on Jungle Isle! Then she'll tell ya what to get! Then bring it back to Princess Pookie on Lava Isle. -RescuePets from Bay Server Kilye will need 20 blackberries and 2 oranges to make the purple ink. -MissDixie on Roan Server
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.
Bluish black! INK
You can use Chromatography.
yes
You sign it with a pen - and permanent ink.