Southern Andes

The pattern of opposed color diagonals on face and fret tunics. (a) The root pattern in a band; (b) continuous across the center seam (LACMA M77.70.3, after Bergh 1999:Figure 7.1); (c) reversing at the center seam (TM 1962.28.1).
The pattern of parallel diagonals on face and fret tunics with reversals at the center seam and shoulder line. (a) MfVM 18/1363 (after Stone 1987:Figure 3-33). 
The pattern of parallel diagonals on face and fret tunics with reversals at the center seam and shoulder line. (b) BMA 41.229 (after Bergh 1999:Figure 10.1).
Examples of color patterns in figurative tunics, reproduced in wrapping; two-color checkerboard (left); opposed diagonals with four colors (right).
Two-color patterns in figurative tunics. (a) Root pattern in a single band; (b) straight horizontals in a tunic panel; (c) straight horizontals, aligned at the center seam (DO, PC.B.498); (d) straight horizontals, offset at the center seam (MMA 30.16.3); (e) checkerboard in a tunic panel; (f) checkerboard, aligned at the center seam (BMA 71.180); (g) checkerboard, offset at the center seam (PC, Bergh 1999:678, catalogue entry 47).
Four-color patterns in figurative tunic panels. (a) Root pattern in a single band; (b) straight horizontals; (c) parallel diagonals; (d) horizontal zigzags; (e) opposed diagonals. At the center seam, patterns can be continuous, reversed, and/or offset.
Two possibilities for four-color, horizontal patterns in figurative tunics. (a) Color order inverted at the center seam (MfVM 34-50-6); (b) continuous horizontals at the center seam (hypothetical pattern, not encountered in the known tunic sample).
(d) Triad on tray 30275 from Quilmes, Yocavil; Museo Etnográfico J. B. Ambrosetti, Buenos Aires. Photos by the author.
(e) Triad on tray 1223 from La Paya; Museo Etnográfico J. B. Ambrosetti, Buenos Aires. Drawings by Tania Basterrica from photos taken by the author. 
Deriving color patterns in the four-part creature tunics. (a) Linear sequence in a single band (rare); (b) linear sequence and its inversion in a doubled band (standard); (c) panel pattern extended by exact repetition; (d) panel pattern extended by offsetting.

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