aleatory #2: zig-zag

Cut-paper collage postcard created for the Swap-bot swap "Nifty Neutrals," in which we are only allowed to use black, white, grey, and brown.

Background polygons from magazine & catalog clippings. Central zig-zag from real (not facsimile) mid-19th-century ledger paper. Thanks to the influence of composer John Cage, I let chance determine the locations of the black painted lines: their positions are pairs of integers in sequence from a random number generator.