The symbols have pips in the center. Using the pips as a book cipher, and using the number of sides as the book itself, you get (F)OUR, F(O)UR, TH(R)EE, ON(E), (S)IX, T(H)REE, (O)NE, FOU(R), (T)HREE, FIV(E), O(N)E .
(F)OUR, F(O)UR, TH(R)EE, ON(E), (S)IX, T(H)REE, (O)NE, FOU(R), (T)HREE, FIV(E), O(N)E