I tied a few Turks Head knots for some knot tool handles today.
These were all tied on a plain old wooden mandrel without a diagram, pattern, or other visual aid, just following the rules of the knots to make them right.
I used 2 or 3 tightening passes to dress the knots, which are tied with thin seine twine of both tarred and untarred nylon. Super durable, and it looks better with age and patina.
The pineapple knot on the right is 1 inch in diameter. I tied a black Turks head with 8 bights and 9 parts. Its pattern is Over 1, Under 1.
Then I tied a white Turks head knot with 8 bights and 7 parts intermingled through that knot, with pattern Over 2 Under 2.
The thin black knot is a 13 bight Spanish ring knot raised from a 3P Turks head.
It has an Over 2 Under 2 pattern.
The big white TH has 8B 7P, in an O2U2 pattern, and is doubled the easy way; I tied it with a doubled strand and was careful not to twist it, as opposed to using one strand and following the knot around twice, which is the more frequently used method of doubling a knot. Either way you do it, the finished product is practically the same, but with the easy way the tightening is quicker and better suited to production work. You can use multiple colors either way.