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GalacticlibraryglyphUplift.svg in David Brin's Uplift series of sciencefiction novels fivefold spiral with vertical bar through its center pages of the related images File Fivefivefoldspiralsquintuplepentaskelion svg or File FivefivefoldspiralsPentaskelionsimpler svg AnonMoos File Fivefivefoldspiralsquintuplepentaskelion svg File