card index boxes (Woodley RG5)

Both take 6"x 4" cards and come with a pack of edge-punched cards.. Clipping out 1 or more holes and inserting knitting needles through the pack allows the wanted cards to drop out. The subjects may be classified alphabetacally, numerically (up to 75) or using the 7,4,2,1 system to create even more detailed subdivisions - old technology but it can't be hacked and doesn't crash!. Unfortunately many of the lettered separator cards are missing.