Vestal Virgin Print on Canvas

I bought this print 25 years ago in a Salvation Army Store.  It appears to be printed on Canvas and mounted onto a frame. Canvas size is 24" X 30"

I'm not sure of the printing process used, but it is very detailed and delicate.  I had the print framed and matted. Overall it is in very good condition, there are a few minor creases in the canvas.

I am interested in knowing the print process used and anything you can tell me about this print.

I am downsizing and as result need to sell many of my items so I would like to know if this has a value other than it's interesting.

Would appreciate anything you could tell me.

Thanks!

Sue