The edges of each postcard were hand stitched to the back, then each was hand stitched to its section of the wool background. Some seemed to need an edging, so the cord was applied next. Then I placed the 2 sides wrong sides together and turned the edges of the wool in, stitching the bottom, the ends, and each division. After putting matt board in each pocket, I stitched the top.
It was great to be part of the project, and I have joined for this next year. This time I've thought it through better and factored in how to finish the pieces month by month rather than having this big job at the end.