PGSS sign for FARENHEIT

FARENHEIT
Hold 1st 1st finger hand, back outward and 1st finger pointing upward, in front of own shoulder, and put 2nd 1Pt h, 1st finger pointing inward & fingers upward, with tip of its 1st finger 1) on lower knuckle of 1st finger of 1st hand 2) on mid knuckle and 3) on upper knuckle of 1st finger of 1st hand; then change 2nd hand to FLAT hand but with ball of thumb on nail of its 1st finger, back outward & fingers pointing upward, one hand's breadth outward from 1st hand.
[Compare CENTIGRADE]