I discovered a threading error after I’d woven about an inch or so and an ordinary comb helped isolate the mistake in the heddles. [click photos to enlarge]

I discovered the error in only a few of the sheds—2 warp threads were closer together than the rest of the warp.

Then I vaguely saw in the woven part what looked like an error in the reed. It wasn’t the reed, but a mistake in the threading which was obvious when I isolated the area in the heddles with the comb.

I took out all the threads from the error to the edge of the warp. It was helpful to have the woven part still in place.

Here are the first 4 threads in their proper heddles.

Thank goodness for the lease sticks in the cross! I always keep them in behind the heddles in case of an error or broken thread so I can quickly find the correct heddle(s) to make the repair.

I put the threads into the reed as I went along.

Here the 40 ends are re-threaded and re-sleyed in the read, ready to tie on. I’ll take out the previously woven part and tie on the whole warp again. I like to lash on, especially with this slippery and expensive silk warp thread.