Fingers and Hands Notation

1 = Thumb
2 = Index (Forefinger)
3 = Middle
4 = Ring
5 = Little
0 = Hand or wrist
6 = Palm
R before finger designation = right; (i.e., R1 = right thumb)
L before finger designation = left; (i.e., L1 = left thumb)

Ref. 1) isfa Nomenclature (Almost same but no 0 and 6)
Ref. 2) Eric Lee's Notation (Letter Notation on fingers, r:right; l:left, instead of R,L designation )