Geometric Forms Color Study Vintage Watercolor tool I'm not entirely sure of

I'm not entirely sure of the age

NY" printed in silver on the top

It is in fantastic condition and really just a little gem of a thing

from strong brow to proud nose to deeply carved  long whiskers--adding up to a sense that this cat is rather staring one down and clearly has the upper hand

stiff gray board and dated on the back 5/19/76

Geometric Forms Color Study Vintage Watercolor tool I'm not entirely sure ofThis is the smaller of two abstract vintage watercolors I'm listing by the same unknown artist, I'd guess likely done as art school exercises, though I am not entirely certain. They've both got a bit of a Hilma af Klint vibe, this one with a more dense and saturated concentration of elongated triangular forms, transforming in color as they cross the outlined borders of the round forms. Luminous, it keeps making me think of a stained glass window.