REQUEST FOR A PICTURE OF THREADING

HI AM DOING SOME RESEACH ON AREA AND WAS WONDERING IF ANYONE HAS A PICTURE WHICH THEY COULD SEND ME SHOWING HOW THREADING IS DONE. I KNOW OF ONE METHOD IN WHICH YOU HOLD THE TWISTED THREAD IN BOTH HANDS BUT DO NOT KNOW HOW IT IS DONE IN ANOTHER METHOD WHERE YOU HOLD ONE END OF THE THREAD IN YOUR TEETH AND THE OTHER IN YOUR LEFT HAND AND SOMEHOW THE LOOPS IN THE MIDDLE REMOVES HAIR. I THINK THE LATTER IS THE OLDER METHOD, WOULD BE GRATEFUL FOR ANY PICTURES/DRAWINGS.