It's been too long since my last post! I've finally taken pictures of the altered muslin for the 60s coat dress, and compiled all of the pattern alterations.
This is the final version of the muslin, and this time I've sewn it together with the seams on the inside to get a better idea of how this dress is really going to appear once it has been finished. All of the pins around the bottom of the skirt are holding up the 2 5/8 inch seam allowance; the hem doesn't hang very gracefully because of the muslin, but with the fashion fabric and hand hemming stitches, it should hang just fine. The collar will be slightly narrower than it is in the picture, since the seam allowance will eventually be taken up by the facing seam (the same goes for the armholes).

Please pardon the "scenery" - the living room is in the process of being repainted ;)Now for the alterations; I'll cover all the pattern changes in the order that I made them.

I began with the bodice back pattern piece (pictured above), making a narrow back adjustment to remove the extra fullness. Here's a list of the steps I took to make this alteration:
1.) I started by drawing a line parallel to the center back, starting from the middle of the shoulder.
2.) I then drew another line perpendicular to the first, starting from the middle of the armhole.
3.) Next, I drew a third line parallel to the second, starting one inch below the armhole.

4.) I slashed the pattern along the three lines, removing a small section of the pattern. I then slid the section in by one inch, removing a total of two inches because the amount doubles when both sides of the back are counted.

5.) I then redrew the armhole seam (then alteration book I used for this particular pattern change recommends using a French or fashion curve to redraw this seam; I had neither of these items on hand so I traced a copy of the old armhole shape and used it as an aid to smooth out the seam).
6.) For the final step, I redrew the side seam from the new underarm location to the waist.

While this was an improvement to the fit, there were still too many excess folds of fabric in the middle of my back, so I had a helper take in the top halves of the darts, and extend them to make them slightly taller. This gave it a nice fit, while still allowing adequate ease for movement. If you look carefully at the first picture of the back pattern piece above, you can see that the tops of the darts are deeper and longer.
Next, I moved to the front of the muslin:

This is probably the piece that underwent the most alterations! The first step toward a good fit was reducing the cup size of the bust darts. I did this by taking a horizontal tuck across the bust line on the muslin to determine how much fullness needed to be removed. The tuck was about a quarter inch wide, which doubles to half an inch. When you're removing fullness from the bust dart, each half an inch that you remove will be one cup size (commercial patterns are usually drafted to fit a B cup). If you look in the photo above, you might recognize the
dart alteration that I posted about a while ago. But if you pretend that those darts haven't been raised, you can see where the pattern has been overlapped, and that's where I removed the excess room from the bust. I drew a line through the center of the dart from the side seam to the point, and from the point to the center front. I slashed along this line and overlapped the two pieces by a quarter inch, removing one cup size. I then reconnected the dart legs to the dart point.
This change immediately improved the fit. However, there was still an excessive amount of room under the arm, and I removed this by ripping open the top half of the side seam and pinning out a little extra room on the front only (I had already made alterations to the back at this point).
Finally, to fine-tune the fit, I took in the side seams above the waist, raised the bust and waist darts, and pinched them in slightly (mostly around the waist area on the waist dart), which helped define the waist a little. I made no alterations to the skirts pieces, as they already seem to fit.
Now that the main pieces are fitted, my next step is to alter the facing patterns to match, and gather the rest of the materials for the final dress. I still have to order some organza for interfacing and go hunting for buttons. I'm going to be lining at least the top half of the dress, so I'll need to find lining fabric as well. Perhaps some sort of cotton would be comfortable :)
Thank you for reading such a wordy post! As always, if you have any questions, just click on the comments link below!