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I know that SRP has a limit of the size of images it stores and rescales them on upload. I also have the original images, which are roughly 1600x1600 pixels (exact numbers depending on my cropping)....

I guess I'll let you guess the origin of this one too.

Four vintage thuringian stones, one has an escher label - you can try to guess which.

The pictures are the surfaces of a paper used for setting the white balance and 4 vintage belgian coticules.
As per previous post, the magnifications are 100x and 450x.

Not to clutter the recent threads, plus my microscope is different, so I decided to post some more pictures in case it's helpful to people.

Equipment:
(1) Vintage Leitz Vetzlar (Leica) optical...