Two shuttles pattern, shoe lace tricks, shuttle lock joins, reverse tatting, block tatting...
The square of previous post, the "flower of filet", started with a little ring 3-3. I used two colours to better show the pattern and then it could be clearer when I switched shuttles.
With the orange thread (the core tread in that position) I tatted a ring 3+3, joining to previous ring.
... to be continued (with the same chain showed in pic.1).