I'm not sure if you have reached a satisfactory conclusion to your original post but I will give you my thoughts on it.
First of all I agree with your observations on the spinnekrok and its connection to the was sceptre of Egypt. I don't
look at objects such as these in literal terms but instead symbolic ones.
In symbolism this symbol represents weaving/weaver.
What does weaving/weaver really symbolize?
I will use a definition given by J.C. Cooper. I will also include a link to Richard Wilkinson's Symbol & Magic in Egyptian Art.
In the preface he describes the use of the different types of symbolism and it's interpretation. If you go to page 160 and
look at illustration 110 you will see how the ankh (breath) and was are together and connected to water (life).
The Primordial Weaver, the Great Weaver, is the creator of the universe, weaving on the loom of life the fate of all. All goddesses of Fate and Time are spinners and weavers. The weaver is also the Cosmic Spider and the thread of the Great Weaver is the umbilical cord which attaches man to his creator and his own destiny and by which he is woven into the world pattern and fabric.
The warp is the vertical plane, joining all degrees of existence; the qualitative essence of things; the immutable and unchanging; the forma; the masculine, active and direct; the light of the sun. The weft, or wool, is the horizontal; nature in time and space; the quantitative, casual and temporal; the variable and contingent; the human state; the materia, feminine and passive; the reflected light of the moon. The warp and weft in relationship form a cross at each thread, the crossing symbolizing the union of opposites, the male and female principles united. Alternating colours depict the dualistic but complimentary forces of the universe. Night and Day are two sisters weaving the web of Time, the spatio-temporal fabric of cosmological creation.
Buddhist: Weaving is the fabric of samsara, of illusion, of maya, of the conditioned, contingent and ever changing existence.
Chinese: The alternations of the yin and yang. ‘The to-and-fro motion of the shuttle on the cosmic loom’ (Chang-hung yang).
Christian: The warp is the fundamental doctrine of the scriptures, the weft the commentaries on the doctrine.
Egyptian: Neith, as a weaver of the world, has the spider as an attribute.
Graeco-Roman: Athene/Minerva is a weaver of the world, as is Harmonia. The Fates, the Moirai, weave the web of destiny.
Hindu: Brahma, the Supreme Principle, is ‘That on which the worlds are woven as warp and weft’ (Upanishads). Weaving is also the breath of life, and everything in the cosmos is connected by an invisible web.
Scandinavian and Teutonic: Holda and the Norns are weavers of destiny. The Valkyries weave the web of victory with the warp of intestines, raised on spears, into which they weave the red weft with arrows.
Sumo-Semitic: Ishtar and Atargatis are weavers of the fabric of the world and of fate, and cut the thread of life.
This link is to Charles Wilkinson's drawing of the Astronomical Ceiling Tomb of Senenmut. New Kingdom. I found it
intriguing because it represents Osiris with his face behind him, looking backward. It seems the ferryman of utterance 270 is he.
The three large stars appear to be the constellation Orion.
Click on the upper middle to enlarge.
You also asked about the comb. It represents the rays of the sun.
Cloth, thread, loom, spindle and distaff, whatever is used in spinning and weaving, all these are so many symbols of futurity. They are used to denote all that rules or intervenes in our fate. The Moon ‘weaves’ destiny and the spider, spinning its web, is an image of our fate. The Fates themselves were spinsters, weaving the threads of destiny, and they were Moon-deities, too. To weave is to create fresh shapes. “For to weave is not merely to predestine (anthropologically), and to join together differing realities (cosmologically) but also to create, to make something of one’s own substance as the spider does in spinning its web’ (Mircea Eliade, Patterns in Comparative Religion, p. 181).
Countless goddesses and Great Goddesses hold spindles and distaffs and preside not only over birth, but over the course of time and the chain of cause and effect. In the Near East, examples of them are known going back to 2000 BC, amongst which is the Great Goddess of the Hittites. Thus they were the mistresses of time, of the span of human life, and sometimes were endowed with the harsh and pitiless lineaments of fate, the law which ordains the continuous and universal alteration of beings and from which the infinite varieties of form derive. The shimmering fabric of the world stands out against the background of human suffering. Spinsters and weaver-women perpetually open and close the cycles which affect individuals, nations and the cosmos itself.
Hopefully, this provides a little different perspective.
I will leave it at that for now.