Handblown Antique Apothecary Bottle Full of Soluble Blue Pigment cache pot Light bumping to the corners

Light bumping to the corners and it looks perhaps as if it was kept in an album with corner frames

and structurally very sound

but photos give a fairly good sense

I believe this drawing likely dates to the 1940s

Handblown Antique Apothecary Bottle Full of Soluble Blue Pigment cache pot Light bumping to the cornersI've found this bottle near impossible to photograph, but the inset detail in the first image gives a sense of the fantastic blue powder inside, which I take to be Soluble (Prussian) Blue. While most definitely a glorious pigment to use for painting or dying (I dissolved a bit in water and it produces beautiful color), I have a notion housed as it is in an antique handblown apothecary bottle that it may have been used for medical purposes; from what I