Okay... The smock is 42 inches around at the chest.. The total length shoulder to hem is 26.5 inches. At the waist it is 39 inches because of the darts. I am 5'6" and the smock hits me right at the top of my pants inseam. I am wearing it in the picture and the video, But can take a couple more pictures tomorrow. ( ;Dgetting dark here..)
Construction is basically that the apron strings are inserted in the darts which are quite deep. The xxxx's on the pattern show apron string placement The pocket is sewn on the front panel before the sides are seamed up. The pocket is top stitched right under the darts to make the three compartments. The back panels are hemmed with a 1/4 in rolled hem and the bias tape goes around the arm holes and up the back opening around the neck and down the other side. The smock is help closed with a single button at the neck in back, and the apron ties.
I will post some more pics tomorrow of the vintage smock all laid out.
And I will try and put some perfunctory written instructions together too...

Thanks for your question Amy!