Please help identify this painting
Would greatly appreciate any ideas on the history of this beautiful and delicate oil painting. Era? Subject? Painter?
Frame is white plaster on the back (starting to crumble), no signatures/marks on canvas (its v dirty and gray though)
Purchased a while back from a private collector in Cornwall area. Origins are unknown.
Unfortunately the signature cannot be seen. It's most likely hidden under the frame, but the painting is tightly wedged inside and trying to remove this would damage the varnish and frame.
Dimensions are approximately
34 X 30 inch frame
24 X 20 inch painting
Many thanks for reading.