Great Old Pen and Ink Mandala-like Pattern Drawing, Early 20th Century graphic design I’ve just leaned (my ignorance)

I’ve just leaned (my ignorance) that the image is referred to as “Rock of Ages

1910-20s I believe

5 5/16" X 5 5/16" X 3/4"

Surely there is a potter or sculptor out there who can put these to good use

and good for many more tosses (and if you are more  coordinated than me

Great Old Pen and Ink Mandala-like Pattern Drawing, Early 20th Century graphic design I’ve just leaned (my ignorance)Early 20th century I believe, and executed in pen and ink (not marker), with the wavery sort of line quality and variation in saturation that comes from that. I love a free hand, doodle ish sort of pattern drawing, and this one quite a satisfying combination of fine detail and bold effect. Great. 10 1 4" x 7". Very good condition.