The old currency in Greece was the DRACHMA.
Color images of the 6 Greek banknotes (front and back) are shown below.
(Click on the images to see enlarged versions):

100 DR	100 DR	200 DR	200 DR	500 DR	500 DR

1000 DR	1000 DR	5000 DR	5000 DR	10000 DR	10000 DR

Download a pdf file with the above 12 images all in one page for easy reference.
See all the pictures together here.