'Treh Mudra' Instead Of 5Ks In Sikh Historical Ancient Texts ?

[Neutral Singh]

Why do the ancient sikh historical texts such as Sarbloh Guru Durbar, Gurprtap Suraj Prakash, Naveen Panth Prakash etc. speak of 'Treh Mudra' (three adornments - kard, kachera and kesh) instead of the '5 Ks (The 5Ks - kesh (unshorn hair), kara (steel/iron war bracelet), kirpan/kard (dagger), kanga (wooden comb) and kachera (breeches))?

Please Discuss

 

[BaljeetSingh]

Can you please let me know who are the authors of these books and in which year they were written?

Regards