I'm guessing that was made no later than the 1970's and no earlier than the 1930s. I'd have to look at some other things -- are all the blocks the same or are there different fabrics? I'm basing that mostly on the fabric used and the style of project. I don't do applique myself and don't know the name offhand, but I'm pretty sure it was a mass produced one, like included with Mountain Mist batts or in the Newspaper patterns.
In dating a quilt, it is only as old as the most recent fabric, but that doesn't matter to most people really "only" the preservationists and historians. I often see true scrap bag quilts made from multiple decades of saved bits and pieces.