Portrait of Irène by Renoir signed painting Anco Bilt frame

I’ve held onto this for 10 years in the hopes of having it appraised. I saved it from the items that were left at a lady's estate and it was not in good condition when I found it so the years have worn it down even more, it’s in rough shape but restorable.
I don’t know if this could be a first draft of the original painting by Renoir, but the canvas was reframed onto an Anco Bilt because of the spacing between outside brush strokes and the aged strip of canvas on the left edge. I believe this painting is older than the frame it’s on, and the frame is very old, 65+ years. I’ve been offered a good amount for it in the past but I couldn’t justify selling it in case this was worth much more. I wanted it appraised, but I’m needing to sell it unfortunately. I do not have much background on it, and I’m NOT guaranteeing authenticity but I have high hopes for this painting. Imperfections are in pics. Signed Renoir. Message for more info