• Webster's Revised Unabridged Dictionary
    • n Scratchback A toy which imitates the sound of tearing cloth, -- used by drawing it across the back of unsuspecting persons.
    • ***
Century Dictionary and Cyclopedia
    • n scratchback Same as back-scratcher, 1.
    • ***


In literature:

Old English scratchbacks are among the rarities of the curios associated with the toilet table.
"Chats on Household Curios" by Fred W. Burgess