Diamine Earl Grey?
Papier plume oyster grey?
Montblanc Oyster Grey
DeAtramentis Mouse Grey or Stipula Calamo Fading Grey?
There might be a clue in the image? How about L'Artisan Pastellier Callifolio Botany Bay?
Regards, Chrissy | My Review Blog: inkyfountainpens
Organics Studio Arsenic Gray?
J Herbin Gris nuage?
Kiri-same?
KTANO PEARL Silver?
I suspect that it is likely a Birmingham Pen Company ink or what about Franklin Christoph Graphite 4B?
Pennonia Viharfelhö Storm Cloud?
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