Though it was relatively straightforward joining the first two ninths, quilting over the join was not so easy. It was hard to manoeuvre it through the sewing machine. This has forced a change in plan: I had been planning to quilt the border last, all at once; now I’ll do it as I go to minimise the quilting needed on huge pieces.
Anyway, here’s the first join as seen from the back.
Progress so far (white rectangle shows quilted area) …