HUGE 28pc set VINTAGE melamine dish set retro 70s

Not thrifted. Used to be my family’s picnic dishes growing up. A few pieces have gone missing over the years, excellent shape. Small flaws typical of vintage pieces, my mom wrote my name on two pieces..Tried to include as many photos as possible. Lovely light blue color, perfect for any vintage collector of these dishes. I love them but just have too many vintage pieces. Likely from the 1970s or earlier, due to design. Could be early 80s but not sure they still made these at that time!