This is the block pattern from last week's Circa 2016 instalment.
Temecula Quilts calls this block "birds in the air". Easy peasy to sew. This mystery project won't be concluded until October, but in the meantime there is the job of making 120 little 1.5" HST blocks. I will try to make a few of those now and then so I'll be ready to assemble when the time comes. Hop over to Temecula to see what blocks we are sewing this week.