I have this dress on my body right now, and it is amazing and gorgeous and hits above-the-knee on my 5'8" frame, instead of just-below-the-butt-cheeks as so many ASOS dresses do, necessitating leggings or just an inability to bend over for any reason all day. The item description calls it a “50s” dress but I think it works for the 60s, too.
That adorable little ASOS Curve Exclusive number comes in sizes 16 to 22 (though ASOS sizing runs generously in my experience) and it's currently on sale for $34.48, with free shipping. You’re welcome.
Bonus: Show off your awesome rack with this amazing dress from eShakti in every color. It comes in standard sizes up to a 26, or custom made for an additional fee. Perfect for leaving garbage everywhere after a picnic!