At first glance it looked like some fabric but then again reminded me of my now retired CRT-screen.
Very intereting to follow your progress on evaluating the GRDII. Will be monitoring closely. Great work!
I don't yet own a pocketable camera so I have an open mind.
Aguila-se, nice to have you in the forum.
Would you like to give us an image for us to guess what is it?
Marky did one and in less than a day, the image was discovered.
Cheers from Singapore.