Structure 3C15, Sculptured Stones from the Hieroglyphic Band. After Hermann Beyer (1937: plate 14). Beyer explains: "Blocks 4-19, belonging to certain hieroglyphic serpents, were found in the débris from the tower and upper platform of the Caracol. The provenance of the three small blocks, a, b, and c, each representing three glyphs, probably indicates that there had been four of them and that they had been closely connected with the hieroglyphic serpents of blocks 4-19. See Ruppert, 1935, p. 276."