Diagram Showing System of Finger Counting ca. 8th Century AD
10 x 8 in.
Black and white. Series of drawing showing hands (top section) and persons demonstrating finger counting. Image is dark and grainy. Verso: label with caption reads: "Title: Diagram showing system of finger counting." "Artist: anonymous" "Date: 8th Century AD' "Lent by: The Computer Museum, Boston, MA" "From the exhibition: Computers In Your Pocket: The History of Hand Held Calculators" "Photo credit: the Computer Museum, Boston, MA"