Looks like fun!

My guess would be late 40's early 50's

My guess is that the pattern is fairly old, as many have stated, but the fabrics look like the 60s and 70s to me. Someone took Grandma's pattern and decided to try it in the more contemporary fabrics of the "flower children"

I have some of the same fabric. It was gifted to me from someone's Aunt who had passed away. Enjoy.