Auckland Optotypes: All symbols (regular, vanishing & silhouette) in vector graphics format (Adobe Illustrator or .pdf)

Vector versions of all symbols in the Auckland Optotypes in either one Adobe illustrator or one pdf file. Each file contains four versions of the symbols: regular (black on white), vanishing #1 (White-Black-White on grey), vanishing #2 (Black-White-Black) on grey or silhouette.