Tangkitn / Pandat with motive

[werecow]

Could EDTA gel work maybe?

See: https://www.youtube.com/watch?v=WhzNttK_-ko

He says it works on a tulwar with koftgari:

https://www.youtube.com/post/UgkxPCh...NeHHJ0hiXzBMGr

The EDTA gel seems to work on koftgari. Modified with sodium bicarbonate to slightly above neutral pH, did not affect the cross-hatching or iron oxides below the koftgari.

The silver overlay remained grey after gel removal but rapidly brightened when wiped with oil. Two or three gentle passes of a paper towel, in circular motions, and the silver oxidation was removed.