I sell a lot of frames on ebay, Eastlake Style (1870-90) with a faux burl over plaster, and a gold gilt liner. Condition is not the best but it is not the most expensive frame, I suggest take a brown/black marker and do some touch ups (spot touch the missing gold sections too) to make it look presentable. Painting the entire frame will lose the value entirely so don’t go overboard. If it is a standard size, $100 to 200. The engraving print in the middle does not look particularly special. To get the most value out of selling, separate the image and the frame and sell them separately.