There are also a series of other signs evidently connected with the numerals, the precise value of which is yet undetermined. One of these is a small right or oblique cross, or sometimes two arcs abutting against each other, connected or not. It is usually by the side of a single dot or unit, or between two such. In certain places, it seems to be a multiplier with the value 20; in others, it would indicate a change or alternation in the series presented of days or years. (See Fig. [5], Nos. 1–4.)
Fig. 5.—Numeral Signs.
Fig. 6.—The “Cosmic Sign” and its Combinations.
Of somewhat similar value are the calendar signs
, Fig. [4], Nos. 2, 3, 4, like an S placed lengthwise. This is also understood to be a sign of alternation or change of series of years or cycles.
Of an opposite sense is the sign No. 5, the spiral, and also the sign No. 1, both of which are held to represent union.
This list exhausts the mathematical signs so far as they have been ascertained with probability. Those for high numbers brought forward by Brasseur,[[20]] have no evidence in their favor.