In the old Dutch book “Egyptisch Vlechtwerk” - written by E. Sierertz van Reesema I found a description of how to do double sprang without making holes. I try to explain it here with some photos.

The start is the same as in my other project of double sprang. After making some rows of plaiting and overplaiting at both sides, I want to change the color.

Now first I use a ruler between the 2 fields of the color in the back. I use 2 loops attached to the upper cord to keep the ruler in place. Now the red threads at the front of the ruler are ready to be taken in front of the brown threads.

I take the first red thread to the front and push the first brown pair of threads (1 front thread and 1 back thread) to the back. Then I get the next red thread and again I push two brown treads to the back. And so on….

After that I have placed an extra security cord.
Then I started a plait row with the red threads. Each time also pushing a brown pair of threads to behind.

When this plait row was completed I could change the security cord of the red threads. And also the extra security cord could be removed.

Then I worked first a plait row at the other side with the brown. After some more rows at each side the process is repeated. At the photos you can see the 2 different sides of the sprang.

I also worked again with holes, as I did in the double sprang feathers.

At the last photo you can see that I also made long small holes, made by twisting just 2 threads around each other more times in the overplait row. In Dutch we call this “stokjes” but I do not know the English word…
With these holes I find it also more easy to use the above explained method.

Because I want to use this sprang as feathers for the big bird I want to make I have again manipulated the form.