Very informative and clear photos! These were sold as decorator pieces around the mid-twentieth century. There was a good dust cover on the back and the canvas is a tight weave cotton canvas on a well built stretcher.
The painting is dirty and would be a couple of hundred dollars to have cleaned. Some might consider using spit and a large amount of cotton sticks because it's not a large painting. Then one would need to remember that heavy metal oxides were used to color oil paints until recently and I still would not purposely put oil paint in my mouth. They do sell bottled faux spit.
The trick is taking up dirt/old varnish without taking up any paint. Another thing I also saw was paint loss around the signature: This is trickier to clean and repair. There is also crackalour in that same photo.
$150 - $250 each as is. Maybe $400 to $500 once cleaned and stabilized.
It looked like the dust cover was two layers, if so, for the heck of it, separate them and see if there's more on the inner layer.