Ishihara series of 14 plates: only the red line was traceable in plate 14
ishihara series of 14 plates: only the red line was traceable in plate 14
Ishihara series of 14 plates: only the red line was traceable in plate 14 (physical finding)
ishihara series of 14 plates: only the red line was traceable in plate 14 (physical finding)