ESSRI
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ESSRI
I think Fred is right, but just in case: DRI.
It's night, but I took the photo under the LED lights over my dining table, using my iPhone 8. I checked the image against the original on the screen of my MacBook, and it is good for color, but after uploading to FPGeeks, it appears to have lost a bit of orientation towards green on the same screen. There's been no adjustment to the image other than file size reduction to 1200x900. I'll take a photo under daylight tomorrow if the ink isn't identified before then.
Hints will be dribbled out, as is customary.
First useless hint: It's not a permanent ink.
Attachment 51025
EDITED TO ADD: Taken THE NEXT DAY in cloudy daylight, with a couple of blotted drips for good measure.
Attachment 51034
Iroshizuku Ku-jaku?
Maybe Robert Oster Fire & Ice ?
Not that.
A hint from another image source:
Attachment 51032
Rohrerand Klingner - Verdigris
Diamine steel blue
Ding Ding Ding Ding! We have a winner. The ink is Diamine Steel Blue.
Alright here we go...
https://uploads.tapatalk-cdn.com/201...db410fa6d2.jpg
Diamine Marine?
Diamine Smoke on the water?
Noodler's Turquoise?
GVFC Deep Sea Green?