My guess on the time frame would be sometime during the depression. The car looks to be parked for a while on the side of the house but it doesn't seem to be an antique due to the clothing etc. of the people in the photo. I would assume this car was parked due to the expense to maintain and it becoming a non necessity. I would guess the car was sitting for about 1-2 years. the top is still in okay shape but there is some growth around the car. My guess at the year of the photo take would be 1931 if it was in the US.

D.