Ascher Databook Notes:
  1. This is one of several khipus acquired by the Museum in 1907 with provenance Ica. For a list of them, see AS100.
  2. With the exception of the 11th pendant, the group of 12 pendants alternate in color: W, SB or AB.
  3. The values of the alternate pendants in the group form 2 descending sequences (with the exception of the 11th pendant). In each pair, the odd position pendant is greater in value than the next pendant. That is:

    P2i-1 ≥ P2i+1  for i=1, 2, 3, 4
    P2i ≥ P2i+2    for i=1, 2, 3, 4, 5
    Pi > Pi+1       for i=1, 3, 5, 7, 11
  4. Of the 12 values in the group, 6 are of value 37 or above, and 6 are of value less than 37. Each of those greater than or equal to 37 can be expressed as the sum of other values in the group:

      37 = 2+9+26
      52 = 2+2+2+9+37
      64 = 27+37=(2+9+26)+27
      81 = 2+27+52
      84 = 2+2+2+26+52
    170 = 37+52+81=(2+9+26)+52+81

  5. Three of the 12 values are perfect squares (9, 64, 81) and 3 of the values are powers of 3 (32, 33, 34 ).